[Symbol] Decouple clang from CompilerType

[xiaobai]

Summary

Ideally CompilerType would have no knowledge of clang or any individual
TypeSystem. Decoupling clang is relatively straightforward.

[clayborg]

lgtm

[davide]

LGTM

[aprantl]

Should we add some sort of convenience function or a ClangCompilerType subclass of CompilerType that reduces the amount of boilerplate needed on the RHS?

[aprantl]

... or a method ClangASTContext::wrapClangType()?

[xiaobai]

I wouldn't mind adding something to reduce boilerplate, but I'm not sure it would actually look too different. A wrapper function or subclass constructor would need to take a ClangASTContext and a clang::QualType so we could avoid calls to getAsOpaquePtr() everywhere but that's about it I think?

[aprantl]

Let's pick some random examples:

CompilerType(ClangASTContext::GetASTContext(m_ast_source.m_ast_context), generic_function_type.getAsOpaquePtr())
->
ClangASTContext::GetASTContext(m_ast_source.m_ast_context).GetCompilerType(generic_function_type)

or

CompilerType(this, llvm::cast<clang::AutoType>(qual_type)->getDeducedType().getAsOpaquePtr())
->
GetCompilerType(llvm::cast<clang::AutoType>(qual_type)->getDeducedType())

Perhaps it really doesn't matter too much.

lldb/trunk/include/lldb/Symbol/ClangASTContext.h

if (type_name.GetLength()) {
         clang::DeclContext::lookup_result result =
             decl_context->lookup(myName);
 
         if (!result.empty()) {
           clang::NamedDecl *named_decl = result[0];
           if (const RecordDeclType *record_decl =
                   llvm::dyn_cast<RecordDeclType>(named_decl))
             compiler_type.SetCompilerType(
-                ast, clang::QualType(record_decl->getTypeForDecl(), 0));
+                this, clang::QualType(record_decl->getTypeForDecl(), 0)
+                          .getAsOpaquePtr());
         }
       }
     }
 
     return compiler_type;
   }
 
   CompilerType CreateStructForIdentifier(

lldb/trunk/include/lldb/Symbol/CompilerType.h

 //===-- CompilerType.h ------------------------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef liblldb_CompilerType_h_
 #define liblldb_CompilerType_h_
 
 #include <functional>
 #include <string>
 #include <vector>
 
-#include "lldb/Core/ClangForward.h"
 #include "lldb/lldb-private.h"
 #include "llvm/ADT/APSInt.h"
 
 namespace lldb_private {
 
 class DataExtractor;
 
 // A class that can carry around a clang ASTContext and a opaque clang
 // QualType. A clang::QualType can be easily reconstructed from an opaque clang
 // type and often the ASTContext is needed when doing various type related
 // tasks, so this class allows both items to travel in a single very
 // lightweight class that can be used. There are many static equivalents of the
 // member functions that allow the ASTContext and the opaque clang QualType to
 // be specified for ease of use and to avoid code duplication.
 class CompilerType {
 public:
   // Constructors and Destructors
   CompilerType(TypeSystem *type_system, lldb::opaque_compiler_type_t type);
-  CompilerType(clang::ASTContext *ast_context, clang::QualType qual_type);
 
   CompilerType(const CompilerType &rhs)
       : m_type(rhs.m_type), m_type_system(rhs.m_type_system) {}
 
   CompilerType() : m_type(nullptr), m_type_system(nullptr) {}
 
   ~CompilerType();
 
public:
 
   lldb::opaque_compiler_type_t GetOpaqueQualType() const { return m_type; }
 
   lldb::TypeClass GetTypeClass() const;
 
   void SetCompilerType(TypeSystem *type_system,
                        lldb::opaque_compiler_type_t type);
 
-  void SetCompilerType(clang::ASTContext *ast, clang::QualType qual_type);
-
   unsigned GetTypeQualifiers() const;
 
   // Creating related types
 
   CompilerType GetArrayElementType(uint64_t *stride = nullptr) const;
 
   CompilerType GetArrayType(uint64_t size) const;
 

lldb/trunk/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp

CompilerType ClangASTSource::GuardedCopyType(const CompilerType &src_type) {
   SetImportInProgress(false);
 
   if (copied_qual_type.getAsOpaquePtr() &&
       copied_qual_type->getCanonicalTypeInternal().isNull())
     // this shouldn't happen, but we're hardening because the AST importer
     // seems to be generating bad types on occasion.
     return CompilerType();
 
-  return CompilerType(m_ast_context, copied_qual_type);
+  return CompilerType(ClangASTContext::GetASTContext(m_ast_context),
+                      copied_qual_type.getAsOpaquePtr());
 }
 
 clang::NamedDecl *NameSearchContext::AddVarDecl(const CompilerType &type) {
   assert(type && "Type for variable must be valid!");
 
   if (!type.IsValid())
     return nullptr;
 
clang::NamedDecl *NameSearchContext::AddGenericFunDecl() {
   proto_info.Variadic = true;
 
   QualType generic_function_type(m_ast_source.m_ast_context->getFunctionType(
       m_ast_source.m_ast_context->UnknownAnyTy, // result
       ArrayRef<QualType>(),                     // argument types
       proto_info));
 
   return AddFunDecl(
-      CompilerType(m_ast_source.m_ast_context, generic_function_type), true);
+      CompilerType(ClangASTContext::GetASTContext(m_ast_source.m_ast_context),
+                   generic_function_type.getAsOpaquePtr()),
+      true);
 }
 
 clang::NamedDecl *
 NameSearchContext::AddTypeDecl(const CompilerType &clang_type) {
   if (ClangUtil::IsClangType(clang_type)) {
     QualType qual_type = ClangUtil::GetQualType(clang_type);
 
     if (const TypedefType *typedef_type =

lldb/trunk/source/Plugins/ExpressionParser/Clang/IRForTarget.h

 //===-- IRForTarget.h ---------------------------------------------*- C++
 //-*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef liblldb_IRForTarget_h_
 #define liblldb_IRForTarget_h_
 
+#include "lldb/Core/ClangForward.h"
 #include "lldb/Symbol/TaggedASTType.h"
 #include "lldb/Utility/ConstString.h"
 #include "lldb/Utility/Status.h"
 #include "lldb/Utility/Stream.h"
 #include "lldb/Utility/StreamString.h"
 #include "lldb/lldb-public.h"
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/Pass.h"

lldb/trunk/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp

if (ConstantExpr *constant_expr = dyn_cast<ConstantExpr>(llvm_value_ptr)) {
     }
 
     llvm::StringRef name(named_decl->getName());
 
     clang::ValueDecl *value_decl = dyn_cast<clang::ValueDecl>(named_decl);
     if (value_decl == nullptr)
       return false;
 
-    lldb_private::CompilerType compiler_type(&value_decl->getASTContext(),
-                                             value_decl->getType());
+    lldb_private::CompilerType compiler_type(
+        lldb_private::ClangASTContext::GetASTContext(
+            &value_decl->getASTContext()),
+        value_decl->getType().getAsOpaquePtr());
 
     const Type *value_type = nullptr;
 
     if (name.startswith("$")) {
       // The $__lldb_expr_result name indicates the return value has allocated
       // as a static variable.  Per the comment at
       // ASTResultSynthesizer::SynthesizeBodyResult, accesses to this static
       // variable need to be redirected to the result of dereferencing a

lldb/trunk/source/Plugins/Language/ObjC/NSArray.cpp

bool lldb_private::formatters::NSArraySummaryProvider(
   return true;
 }
 
 lldb_private::formatters::NSArrayMSyntheticFrontEndBase::NSArrayMSyntheticFrontEndBase(
     lldb::ValueObjectSP valobj_sp)
     : SyntheticChildrenFrontEnd(*valobj_sp), m_exe_ctx_ref(), m_ptr_size(8),
       m_id_type() {
   if (valobj_sp) {
-    clang::ASTContext *ast = valobj_sp->GetExecutionContextRef()
+    auto *clang_ast_context = valobj_sp->GetExecutionContextRef()
                                   .GetTargetSP()
-                                 ->GetScratchClangASTContext()
-                                 ->getASTContext();
-    if (ast)
-      m_id_type = CompilerType(ast, ast->ObjCBuiltinIdTy);
+                                  ->GetScratchClangASTContext();
+    if (clang_ast_context)
+      m_id_type = CompilerType(
+          clang_ast_context,
+          clang_ast_context->getASTContext()->ObjCBuiltinIdTy.getAsOpaquePtr());
     if (valobj_sp->GetProcessSP())
       m_ptr_size = valobj_sp->GetProcessSP()->GetAddressByteSize();
   }
 }
 
 template <typename D32, typename D64>
 lldb_private::formatters::
   GenericNSArrayMSyntheticFrontEnd<D32, D64>::

 lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
   GenericNSArrayISyntheticFrontEnd(
     lldb::ValueObjectSP valobj_sp)
     : SyntheticChildrenFrontEnd(*valobj_sp), m_exe_ctx_ref(), m_ptr_size(8),
       m_data_32(nullptr), m_data_64(nullptr) {
   if (valobj_sp) {
     CompilerType type = valobj_sp->GetCompilerType();
     if (type) {
-      ClangASTContext *ast = valobj_sp->GetExecutionContextRef()
+      auto *clang_ast_context = valobj_sp->GetExecutionContextRef()
                                     .GetTargetSP()
                                     ->GetScratchClangASTContext();
-      if (ast)
-        m_id_type = CompilerType(ast->getASTContext(),
-                                 ast->getASTContext()->ObjCBuiltinIdTy);
+      if (clang_ast_context)
+        m_id_type = CompilerType(clang_ast_context,
+                                 clang_ast_context->getASTContext()
+                                     ->ObjCBuiltinIdTy.getAsOpaquePtr());
     }
   }
 }
 
 template <typename D32, typename D64, bool Inline>
 lldb_private::formatters::GenericNSArrayISyntheticFrontEnd<D32, D64, Inline>::
   ~GenericNSArrayISyntheticFrontEnd() {
   delete m_data_32;

lldb/trunk/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCTypeEncodingParser.cpp

if (union_type) {
     for (auto element : elements) {
       if (element.name.empty()) {
         StreamString elem_name;
         elem_name.Printf("__unnamed_%u", count);
         element.name = elem_name.GetString();
       }
       ClangASTContext::AddFieldToRecordType(
           union_type, element.name.c_str(),
-          CompilerType(&ast_ctx, element.type), lldb::eAccessPublic,
-          element.bitfield);
+          CompilerType(ClangASTContext::GetASTContext(&ast_ctx),
+                       element.type.getAsOpaquePtr()),
+          lldb::eAccessPublic, element.bitfield);
       ++count;
     }
     ClangASTContext::CompleteTagDeclarationDefinition(union_type);
   }
   return ClangUtil::GetQualType(union_type);
 }
 
 clang::QualType
 AppleObjCTypeEncodingParser::BuildArray(clang::ASTContext &ast_ctx,
                                         lldb_utility::StringLexer &type,
                                         bool for_expression) {
   if (!type.NextIf('['))
     return clang::QualType();
   uint32_t size = ReadNumber(type);
   clang::QualType element_type(BuildType(ast_ctx, type, for_expression));
   if (!type.NextIf(']'))
     return clang::QualType();
   ClangASTContext *lldb_ctx = ClangASTContext::GetASTContext(&ast_ctx);
   if (!lldb_ctx)
     return clang::QualType();
   CompilerType array_type(lldb_ctx->CreateArrayType(
-      CompilerType(&ast_ctx, element_type), size, false));
+      CompilerType(ClangASTContext::GetASTContext(&ast_ctx),
+                   element_type.getAsOpaquePtr()),
+      size, false));
   return ClangUtil::GetQualType(array_type);
 }
 
 // the runtime can emit these in the form of @"SomeType", giving more specifics
 // this would be interesting for expression parser interop, but since we
 // actually try to avoid exposing the ivar info to the expression evaluator,
 // consume but ignore the type info and always return an 'id'; if anything,
 // dynamic typing will resolve things for us anyway
AppleObjCTypeEncodingParser::BuildType(clang::ASTContext &ast_ctx,
   }
 }
 
 CompilerType AppleObjCTypeEncodingParser::RealizeType(
     clang::ASTContext &ast_ctx, const char *name, bool for_expression) {
   if (name && name[0]) {
     StringLexer lexer(name);
     clang::QualType qual_type = BuildType(ast_ctx, lexer, for_expression);
-    return CompilerType(&ast_ctx, qual_type);
+    return CompilerType(ClangASTContext::GetASTContext(&ast_ctx),
+                        qual_type.getAsOpaquePtr());
   }
   return CompilerType();
 }

lldb/trunk/source/Plugins/SymbolFile/PDB/PDBASTParser.cpp

GetBuiltinTypeForPDBEncodingAndBitSize(ClangASTContext &clang_ast,
   case PDB_BuiltinType::Void:
     return clang_ast.GetBasicType(eBasicTypeVoid);
   case PDB_BuiltinType::Char:
     return clang_ast.GetBasicType(eBasicTypeChar);
   case PDB_BuiltinType::Bool:
     return clang_ast.GetBasicType(eBasicTypeBool);
   case PDB_BuiltinType::Long:
     if (width == ast->getTypeSize(ast->LongTy))
-      return CompilerType(ast, ast->LongTy);
+      return CompilerType(ClangASTContext::GetASTContext(ast),
+                          ast->LongTy.getAsOpaquePtr());
     if (width == ast->getTypeSize(ast->LongLongTy))
-      return CompilerType(ast, ast->LongLongTy);
+      return CompilerType(ClangASTContext::GetASTContext(ast),
+                          ast->LongLongTy.getAsOpaquePtr());
     break;
   case PDB_BuiltinType::ULong:
     if (width == ast->getTypeSize(ast->UnsignedLongTy))
-      return CompilerType(ast, ast->UnsignedLongTy);
+      return CompilerType(ClangASTContext::GetASTContext(ast),
+                          ast->UnsignedLongTy.getAsOpaquePtr());
     if (width == ast->getTypeSize(ast->UnsignedLongLongTy))
-      return CompilerType(ast, ast->UnsignedLongLongTy);
+      return CompilerType(ClangASTContext::GetASTContext(ast),
+                          ast->UnsignedLongLongTy.getAsOpaquePtr());
     break;
   case PDB_BuiltinType::WCharT:
     if (width == ast->getTypeSize(ast->WCharTy))
-      return CompilerType(ast, ast->WCharTy);
+      return CompilerType(ClangASTContext::GetASTContext(ast),
+                          ast->WCharTy.getAsOpaquePtr());
     break;
   case PDB_BuiltinType::Char16:
-    return CompilerType(ast, ast->Char16Ty);
+    return CompilerType(ClangASTContext::GetASTContext(ast),
+                        ast->Char16Ty.getAsOpaquePtr());
   case PDB_BuiltinType::Char32:
-    return CompilerType(ast, ast->Char32Ty);
+    return CompilerType(ClangASTContext::GetASTContext(ast),
+                        ast->Char32Ty.getAsOpaquePtr());
   case PDB_BuiltinType::Float:
     // Note: types `long double` and `double` have same bit size in MSVC and
     // there is no information in the PDB to distinguish them. So when falling
     // back to default search, the compiler type of `long double` will be
     // represented by the one generated for `double`.
     break;
   }
   // If there is no match on PDB_BuiltinType, fall back to default search by

lldb/trunk/source/Symbol/ClangASTContext.cpp

 ClangASTContext::GetBuiltinTypeForEncodingAndBitSize(Encoding encoding,
                                                      size_t bit_size) {
   return ClangASTContext::GetBuiltinTypeForEncodingAndBitSize(
       getASTContext(), encoding, bit_size);
 }
 
 CompilerType ClangASTContext::GetBuiltinTypeForEncodingAndBitSize(
     ASTContext *ast, Encoding encoding, uint32_t bit_size) {
+  auto *clang_ast_context = ClangASTContext::GetASTContext(ast);
   if (!ast)
     return CompilerType();
   switch (encoding) {
   case eEncodingInvalid:
     if (QualTypeMatchesBitSize(bit_size, ast, ast->VoidPtrTy))
-      return CompilerType(ast, ast->VoidPtrTy);
+      return CompilerType(clang_ast_context, ast->VoidPtrTy.getAsOpaquePtr());
     break;
 
   case eEncodingUint:
     if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
-      return CompilerType(ast, ast->UnsignedCharTy);
+      return CompilerType(clang_ast_context,
+                          ast->UnsignedCharTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
-      return CompilerType(ast, ast->UnsignedShortTy);
+      return CompilerType(clang_ast_context,
+                          ast->UnsignedShortTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy))
-      return CompilerType(ast, ast->UnsignedIntTy);
+      return CompilerType(clang_ast_context,
+                          ast->UnsignedIntTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy))
-      return CompilerType(ast, ast->UnsignedLongTy);
+      return CompilerType(clang_ast_context,
+                          ast->UnsignedLongTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy))
-      return CompilerType(ast, ast->UnsignedLongLongTy);
+      return CompilerType(clang_ast_context,
+                          ast->UnsignedLongLongTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty))
-      return CompilerType(ast, ast->UnsignedInt128Ty);
+      return CompilerType(clang_ast_context,
+                          ast->UnsignedInt128Ty.getAsOpaquePtr());
     break;
 
   case eEncodingSint:
     if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy))
-      return CompilerType(ast, ast->SignedCharTy);
+      return CompilerType(clang_ast_context,
+                          ast->SignedCharTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy))
-      return CompilerType(ast, ast->ShortTy);
+      return CompilerType(clang_ast_context, ast->ShortTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy))
-      return CompilerType(ast, ast->IntTy);
+      return CompilerType(clang_ast_context, ast->IntTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->LongTy))
-      return CompilerType(ast, ast->LongTy);
+      return CompilerType(clang_ast_context, ast->LongTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy))
-      return CompilerType(ast, ast->LongLongTy);
+      return CompilerType(clang_ast_context, ast->LongLongTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty))
-      return CompilerType(ast, ast->Int128Ty);
+      return CompilerType(clang_ast_context, ast->Int128Ty.getAsOpaquePtr());
     break;
 
   case eEncodingIEEE754:
     if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy))
-      return CompilerType(ast, ast->FloatTy);
+      return CompilerType(clang_ast_context, ast->FloatTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy))
-      return CompilerType(ast, ast->DoubleTy);
+      return CompilerType(clang_ast_context, ast->DoubleTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy))
-      return CompilerType(ast, ast->LongDoubleTy);
+      return CompilerType(clang_ast_context,
+                          ast->LongDoubleTy.getAsOpaquePtr());
     if (QualTypeMatchesBitSize(bit_size, ast, ast->HalfTy))
-      return CompilerType(ast, ast->HalfTy);
+      return CompilerType(clang_ast_context, ast->HalfTy.getAsOpaquePtr());
     break;
 
   case eEncodingVector:
     // Sanity check that bit_size is a multiple of 8's.
     if (bit_size && !(bit_size & 0x7u))
       return CompilerType(
-          ast, ast->getExtVectorType(ast->UnsignedCharTy, bit_size / 8));
+          clang_ast_context,
+          ast->getExtVectorType(ast->UnsignedCharTy, bit_size / 8)
+              .getAsOpaquePtr());
     break;
   }
 
   return CompilerType();
 }
 
 lldb::BasicType
 ClangASTContext::GetBasicTypeEnumeration(ConstString name) {
#define streq(a, b) strcmp(a, b) == 0
   assert(ast != nullptr);
   if (ast) {
     switch (dw_ate) {
     default:
       break;
 
     case DW_ATE_address:
       if (QualTypeMatchesBitSize(bit_size, ast, ast->VoidPtrTy))
-        return CompilerType(ast, ast->VoidPtrTy);
+        return CompilerType(this, ast->VoidPtrTy.getAsOpaquePtr());
       break;
 
     case DW_ATE_boolean:
       if (QualTypeMatchesBitSize(bit_size, ast, ast->BoolTy))
-        return CompilerType(ast, ast->BoolTy);
+        return CompilerType(this, ast->BoolTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
-        return CompilerType(ast, ast->UnsignedCharTy);
+        return CompilerType(this, ast->UnsignedCharTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
-        return CompilerType(ast, ast->UnsignedShortTy);
+        return CompilerType(this, ast->UnsignedShortTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy))
-        return CompilerType(ast, ast->UnsignedIntTy);
+        return CompilerType(this, ast->UnsignedIntTy.getAsOpaquePtr());
       break;
 
     case DW_ATE_lo_user:
       // This has been seen to mean DW_AT_complex_integer
       if (type_name) {
         if (::strstr(type_name, "complex")) {
           CompilerType complex_int_clang_type =
               GetBuiltinTypeForDWARFEncodingAndBitSize("int", DW_ATE_signed,
                                                        bit_size / 2);
-          return CompilerType(ast, ast->getComplexType(ClangUtil::GetQualType(
-                                       complex_int_clang_type)));
+          return CompilerType(
+              this, ast->getComplexType(
+                           ClangUtil::GetQualType(complex_int_clang_type))
+                        .getAsOpaquePtr());
         }
       }
       break;
 
     case DW_ATE_complex_float:
       if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatComplexTy))
-        return CompilerType(ast, ast->FloatComplexTy);
+        return CompilerType(this, ast->FloatComplexTy.getAsOpaquePtr());
       else if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleComplexTy))
-        return CompilerType(ast, ast->DoubleComplexTy);
+        return CompilerType(this, ast->DoubleComplexTy.getAsOpaquePtr());
       else if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleComplexTy))
-        return CompilerType(ast, ast->LongDoubleComplexTy);
+        return CompilerType(this, ast->LongDoubleComplexTy.getAsOpaquePtr());
       else {
         CompilerType complex_float_clang_type =
             GetBuiltinTypeForDWARFEncodingAndBitSize("float", DW_ATE_float,
                                                      bit_size / 2);
-        return CompilerType(ast, ast->getComplexType(ClangUtil::GetQualType(
-                                     complex_float_clang_type)));
+        return CompilerType(
+            this, ast->getComplexType(
+                         ClangUtil::GetQualType(complex_float_clang_type))
+                      .getAsOpaquePtr());
       }
       break;
 
     case DW_ATE_float:
       if (streq(type_name, "float") &&
           QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy))
-        return CompilerType(ast, ast->FloatTy);
+        return CompilerType(this, ast->FloatTy.getAsOpaquePtr());
       if (streq(type_name, "double") &&
           QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy))
-        return CompilerType(ast, ast->DoubleTy);
+        return CompilerType(this, ast->DoubleTy.getAsOpaquePtr());
       if (streq(type_name, "long double") &&
           QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy))
-        return CompilerType(ast, ast->LongDoubleTy);
+        return CompilerType(this, ast->LongDoubleTy.getAsOpaquePtr());
       // Fall back to not requiring a name match
       if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy))
-        return CompilerType(ast, ast->FloatTy);
+        return CompilerType(this, ast->FloatTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy))
-        return CompilerType(ast, ast->DoubleTy);
+        return CompilerType(this, ast->DoubleTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy))
-        return CompilerType(ast, ast->LongDoubleTy);
+        return CompilerType(this, ast->LongDoubleTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->HalfTy))
-        return CompilerType(ast, ast->HalfTy);
+        return CompilerType(this, ast->HalfTy.getAsOpaquePtr());
       break;
 
     case DW_ATE_signed:
       if (type_name) {
         if (streq(type_name, "wchar_t") &&
             QualTypeMatchesBitSize(bit_size, ast, ast->WCharTy) &&
             (getTargetInfo() &&
              TargetInfo::isTypeSigned(getTargetInfo()->getWCharType())))
-          return CompilerType(ast, ast->WCharTy);
+          return CompilerType(this, ast->WCharTy.getAsOpaquePtr());
         if (streq(type_name, "void") &&
             QualTypeMatchesBitSize(bit_size, ast, ast->VoidTy))
-          return CompilerType(ast, ast->VoidTy);
+          return CompilerType(this, ast->VoidTy.getAsOpaquePtr());
         if (strstr(type_name, "long long") &&
             QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy))
-          return CompilerType(ast, ast->LongLongTy);
+          return CompilerType(this, ast->LongLongTy.getAsOpaquePtr());
         if (strstr(type_name, "long") &&
             QualTypeMatchesBitSize(bit_size, ast, ast->LongTy))
-          return CompilerType(ast, ast->LongTy);
+          return CompilerType(this, ast->LongTy.getAsOpaquePtr());
         if (strstr(type_name, "short") &&
             QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy))
-          return CompilerType(ast, ast->ShortTy);
+          return CompilerType(this, ast->ShortTy.getAsOpaquePtr());
         if (strstr(type_name, "char")) {
           if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy))
-            return CompilerType(ast, ast->CharTy);
+            return CompilerType(this, ast->CharTy.getAsOpaquePtr());
           if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy))
-            return CompilerType(ast, ast->SignedCharTy);
+            return CompilerType(this, ast->SignedCharTy.getAsOpaquePtr());
         }
         if (strstr(type_name, "int")) {
           if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy))
-            return CompilerType(ast, ast->IntTy);
+            return CompilerType(this, ast->IntTy.getAsOpaquePtr());
           if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty))
-            return CompilerType(ast, ast->Int128Ty);
+            return CompilerType(this, ast->Int128Ty.getAsOpaquePtr());
         }
       }
       // We weren't able to match up a type name, just search by size
       if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy))
-        return CompilerType(ast, ast->CharTy);
+        return CompilerType(this, ast->CharTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy))
-        return CompilerType(ast, ast->ShortTy);
+        return CompilerType(this, ast->ShortTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy))
-        return CompilerType(ast, ast->IntTy);
+        return CompilerType(this, ast->IntTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->LongTy))
-        return CompilerType(ast, ast->LongTy);
+        return CompilerType(this, ast->LongTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy))
-        return CompilerType(ast, ast->LongLongTy);
+        return CompilerType(this, ast->LongLongTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty))
-        return CompilerType(ast, ast->Int128Ty);
+        return CompilerType(this, ast->Int128Ty.getAsOpaquePtr());
       break;
 
     case DW_ATE_signed_char:
       if (ast->getLangOpts().CharIsSigned && type_name &&
           streq(type_name, "char")) {
         if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy))
-          return CompilerType(ast, ast->CharTy);
+          return CompilerType(this, ast->CharTy.getAsOpaquePtr());
       }
       if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy))
-        return CompilerType(ast, ast->SignedCharTy);
+        return CompilerType(this, ast->SignedCharTy.getAsOpaquePtr());
       break;
 
     case DW_ATE_unsigned:
       if (type_name) {
         if (streq(type_name, "wchar_t")) {
           if (QualTypeMatchesBitSize(bit_size, ast, ast->WCharTy)) {
             if (!(getTargetInfo() &&
                   TargetInfo::isTypeSigned(getTargetInfo()->getWCharType())))
-              return CompilerType(ast, ast->WCharTy);
+              return CompilerType(this, ast->WCharTy.getAsOpaquePtr());
           }
         }
         if (strstr(type_name, "long long")) {
           if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy))
-            return CompilerType(ast, ast->UnsignedLongLongTy);
+            return CompilerType(this, ast->UnsignedLongLongTy.getAsOpaquePtr());
         } else if (strstr(type_name, "long")) {
           if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy))
-            return CompilerType(ast, ast->UnsignedLongTy);
+            return CompilerType(this, ast->UnsignedLongTy.getAsOpaquePtr());
         } else if (strstr(type_name, "short")) {
           if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
-            return CompilerType(ast, ast->UnsignedShortTy);
+            return CompilerType(this, ast->UnsignedShortTy.getAsOpaquePtr());
         } else if (strstr(type_name, "char")) {
           if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
-            return CompilerType(ast, ast->UnsignedCharTy);
+            return CompilerType(this, ast->UnsignedCharTy.getAsOpaquePtr());
         } else if (strstr(type_name, "int")) {
           if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy))
-            return CompilerType(ast, ast->UnsignedIntTy);
+            return CompilerType(this, ast->UnsignedIntTy.getAsOpaquePtr());
           if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty))
-            return CompilerType(ast, ast->UnsignedInt128Ty);
+            return CompilerType(this, ast->UnsignedInt128Ty.getAsOpaquePtr());
         }
       }
       // We weren't able to match up a type name, just search by size
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
-        return CompilerType(ast, ast->UnsignedCharTy);
+        return CompilerType(this, ast->UnsignedCharTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
-        return CompilerType(ast, ast->UnsignedShortTy);
+        return CompilerType(this, ast->UnsignedShortTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy))
-        return CompilerType(ast, ast->UnsignedIntTy);
+        return CompilerType(this, ast->UnsignedIntTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy))
-        return CompilerType(ast, ast->UnsignedLongTy);
+        return CompilerType(this, ast->UnsignedLongTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy))
-        return CompilerType(ast, ast->UnsignedLongLongTy);
+        return CompilerType(this, ast->UnsignedLongLongTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty))
-        return CompilerType(ast, ast->UnsignedInt128Ty);
+        return CompilerType(this, ast->UnsignedInt128Ty.getAsOpaquePtr());
       break;
 
     case DW_ATE_unsigned_char:
       if (!ast->getLangOpts().CharIsSigned && type_name &&
           streq(type_name, "char")) {
         if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy))
-          return CompilerType(ast, ast->CharTy);
+          return CompilerType(this, ast->CharTy.getAsOpaquePtr());
       }
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
-        return CompilerType(ast, ast->UnsignedCharTy);
+        return CompilerType(this, ast->UnsignedCharTy.getAsOpaquePtr());
       if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
-        return CompilerType(ast, ast->UnsignedShortTy);
+        return CompilerType(this, ast->UnsignedShortTy.getAsOpaquePtr());
       break;
 
     case DW_ATE_imaginary_float:
       break;
 
     case DW_ATE_UTF:
       if (type_name) {
         if (streq(type_name, "char16_t")) {
-          return CompilerType(ast, ast->Char16Ty);
+          return CompilerType(this, ast->Char16Ty.getAsOpaquePtr());
         } else if (streq(type_name, "char32_t")) {
-          return CompilerType(ast, ast->Char32Ty);
+          return CompilerType(this, ast->Char32Ty.getAsOpaquePtr());
         }
       }
       break;
     }
   }
   // This assert should fire for anything that we don't catch above so we know
   // to fix any issues we run into.
   if (type_name) {
     Host::SystemLog(Host::eSystemLogError, "error: need to add support for "
                                            "DW_TAG_base_type '%s' encoded with "
                                            "DW_ATE = 0x%x, bit_size = %u\n",
                     type_name, dw_ate, bit_size);
   } else {
     Host::SystemLog(Host::eSystemLogError, "error: need to add support for "
                                            "DW_TAG_base_type encoded with "
                                            "DW_ATE = 0x%x, bit_size = %u\n",
                     dw_ate, bit_size);
   }
   return CompilerType();
 }
 
 CompilerType ClangASTContext::GetUnknownAnyType(clang::ASTContext *ast) {
   if (ast)
-    return CompilerType(ast, ast->UnknownAnyTy);
+    return CompilerType(ClangASTContext::GetASTContext(ast),
+                        ast->UnknownAnyTy.getAsOpaquePtr());
   return CompilerType();
 }
 
 CompilerType ClangASTContext::GetCStringType(bool is_const) {
   ASTContext *ast = getASTContext();
   QualType char_type(ast->CharTy);
 
   if (is_const)
     char_type.addConst();
 
-  return CompilerType(ast, ast->getPointerType(char_type));
+  return CompilerType(this, ast->getPointerType(char_type).getAsOpaquePtr());
 }
 
 clang::DeclContext *
 ClangASTContext::GetTranslationUnitDecl(clang::ASTContext *ast) {
   return ast->getTranslationUnitDecl();
 }
 
 clang::Decl *ClangASTContext::CopyDecl(ASTContext *dst_ast, ASTContext *src_ast,

 }
 
 CompilerType ClangASTContext::GetTypeForDecl(TagDecl *decl) {
   // No need to call the getASTContext() accessor (which can create the AST if
   // it isn't created yet, because we can't have created a decl in this
   // AST if our AST didn't already exist...
   ASTContext *ast = &decl->getASTContext();
   if (ast)
-    return CompilerType(ast, ast->getTagDeclType(decl));
+    return CompilerType(ClangASTContext::GetASTContext(ast),
+                        ast->getTagDeclType(decl).getAsOpaquePtr());
   return CompilerType();
 }
 
 CompilerType ClangASTContext::GetTypeForDecl(ObjCInterfaceDecl *decl) {
   // No need to call the getASTContext() accessor (which can create the AST if
   // it isn't created yet, because we can't have created a decl in this
   // AST if our AST didn't already exist...
   ASTContext *ast = &decl->getASTContext();
   if (ast)
-    return CompilerType(ast, ast->getObjCInterfaceType(decl));
+    return CompilerType(ClangASTContext::GetASTContext(ast),
+                        ast->getObjCInterfaceType(decl).getAsOpaquePtr());
   return CompilerType();
 }
 
 #pragma mark Structure, Unions, Classes
 
 CompilerType ClangASTContext::CreateRecordType(DeclContext *decl_ctx,
                                                AccessType access_type,
                                                const char *name, int kind,
if (metadata)
       SetMetadata(ast, decl, *metadata);
 
     if (access_type != eAccessNone)
       decl->setAccess(ConvertAccessTypeToAccessSpecifier(access_type));
 
     if (decl_ctx)
       decl_ctx->addDecl(decl);
 
-    return CompilerType(ast, ast->getTagDeclType(decl));
+    return CompilerType(this, ast->getTagDeclType(decl).getAsOpaquePtr());
   }
   return CompilerType();
 }
 
 namespace {
   bool IsValueParam(const clang::TemplateArgument &argument) {
     return argument.getKind() == TemplateArgument::Integral;
   }

 }
 
 CompilerType ClangASTContext::CreateClassTemplateSpecializationType(
     ClassTemplateSpecializationDecl *class_template_specialization_decl) {
   if (class_template_specialization_decl) {
     ASTContext *ast = getASTContext();
     if (ast)
       return CompilerType(
-          ast, ast->getTagDeclType(class_template_specialization_decl));
+          this, ast->getTagDeclType(class_template_specialization_decl)
+                    .getAsOpaquePtr());
   }
   return CompilerType();
 }
 
 static inline bool check_op_param(bool is_method,
                                   clang::OverloadedOperatorKind op_kind,
                                   bool unary, bool binary,
                                   uint32_t num_params) {
ObjCInterfaceDecl *decl = ObjCInterfaceDecl::Create(
       *ast, decl_ctx, SourceLocation(), &ast->Idents.get(name), nullptr,
       nullptr, SourceLocation(),
       /*isForwardDecl,*/
       isInternal);
 
   if (decl && metadata)
     SetMetadata(ast, decl, *metadata);
 
-  return CompilerType(ast, ast->getObjCInterfaceType(decl));
+  return CompilerType(this, ast->getObjCInterfaceType(decl).getAsOpaquePtr());
 }
 
 static inline bool BaseSpecifierIsEmpty(const CXXBaseSpecifier *b) {
   return !ClangASTContext::RecordHasFields(b->getType()->getAsCXXRecordDecl());
 }
 
 uint32_t
 ClangASTContext::GetNumBaseClasses(const CXXRecordDecl *cxx_record_decl,
CompilerType ClangASTContext::CreateFunctionType(
   // TODO: Detect calling convention in DWARF?
   FunctionProtoType::ExtProtoInfo proto_info;
   proto_info.ExtInfo = cc;
   proto_info.Variadic = is_variadic;
   proto_info.ExceptionSpec = EST_None;
   proto_info.TypeQuals = clang::Qualifiers::fromFastMask(type_quals);
   proto_info.RefQualifier = RQ_None;
 
-  return CompilerType(ast,
+  return CompilerType(ClangASTContext::GetASTContext(ast),
                       ast->getFunctionType(ClangUtil::GetQualType(result_type),
-                                           qual_type_args, proto_info));
+                                           qual_type_args, proto_info).getAsOpaquePtr());
 }
 
 ParmVarDecl *ClangASTContext::CreateParameterDeclaration(
     clang::DeclContext *decl_ctx, const char *name,
     const CompilerType &param_type, int storage, bool add_decl) {
   ASTContext *ast = getASTContext();
   assert(ast != nullptr);
   auto *decl =
CompilerType ClangASTContext::CreateArrayType(const CompilerType &element_type,
                                               size_t element_count,
                                               bool is_vector) {
   if (element_type.IsValid()) {
     ASTContext *ast = getASTContext();
     assert(ast != nullptr);
 
     if (is_vector) {
       return CompilerType(
-          ast, ast->getExtVectorType(ClangUtil::GetQualType(element_type),
-                                     element_count));
+          this, ast->getExtVectorType(ClangUtil::GetQualType(element_type),
+                                      element_count)
+                    .getAsOpaquePtr());
     } else {
 
       llvm::APInt ap_element_count(64, element_count);
       if (element_count == 0) {
-        return CompilerType(ast, ast->getIncompleteArrayType(
+        return CompilerType(this, ast->getIncompleteArrayType(
                                          ClangUtil::GetQualType(element_type),
-                                     clang::ArrayType::Normal, 0));
+                                         clang::ArrayType::Normal, 0)
+                                      .getAsOpaquePtr());
       } else {
-        return CompilerType(
-            ast, ast->getConstantArrayType(ClangUtil::GetQualType(element_type),
-                                           ap_element_count,
-                                           clang::ArrayType::Normal, 0));
+        return CompilerType(this, ast->getConstantArrayType(
+                                         ClangUtil::GetQualType(element_type),
+                                         clang::ArrayType::Normal, 0)
+                                      .getAsOpaquePtr());
       }
     }
   }
   return CompilerType();
 }
 
 CompilerType ClangASTContext::CreateStructForIdentifier(
     ConstString type_name,
if (enum_decl) {
     if (decl_ctx)
       decl_ctx->addDecl(enum_decl);
 
     // TODO: check if we should be setting the promotion type too?
     enum_decl->setIntegerType(ClangUtil::GetQualType(integer_clang_type));
 
     enum_decl->setAccess(AS_public); // TODO respect what's in the debug info
 
-    return CompilerType(ast, ast->getTagDeclType(enum_decl));
+    return CompilerType(this, ast->getTagDeclType(enum_decl).getAsOpaquePtr());
   }
   return CompilerType();
 }
 
 CompilerType ClangASTContext::GetIntTypeFromBitSize(clang::ASTContext *ast,
                                                     size_t bit_size,
                                                     bool is_signed) {
   if (ast) {
+    auto *clang_ast_context = ClangASTContext::GetASTContext(ast);
     if (is_signed) {
       if (bit_size == ast->getTypeSize(ast->SignedCharTy))
-        return CompilerType(ast, ast->SignedCharTy);
+        return CompilerType(clang_ast_context,
+                            ast->SignedCharTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->ShortTy))
-        return CompilerType(ast, ast->ShortTy);
+        return CompilerType(clang_ast_context, ast->ShortTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->IntTy))
-        return CompilerType(ast, ast->IntTy);
+        return CompilerType(clang_ast_context, ast->IntTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->LongTy))
-        return CompilerType(ast, ast->LongTy);
+        return CompilerType(clang_ast_context, ast->LongTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->LongLongTy))
-        return CompilerType(ast, ast->LongLongTy);
+        return CompilerType(clang_ast_context,
+                            ast->LongLongTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->Int128Ty))
-        return CompilerType(ast, ast->Int128Ty);
+        return CompilerType(clang_ast_context, ast->Int128Ty.getAsOpaquePtr());
     } else {
       if (bit_size == ast->getTypeSize(ast->UnsignedCharTy))
-        return CompilerType(ast, ast->UnsignedCharTy);
+        return CompilerType(clang_ast_context,
+                            ast->UnsignedCharTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->UnsignedShortTy))
-        return CompilerType(ast, ast->UnsignedShortTy);
+        return CompilerType(clang_ast_context,
+                            ast->UnsignedShortTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->UnsignedIntTy))
-        return CompilerType(ast, ast->UnsignedIntTy);
+        return CompilerType(clang_ast_context,
+                            ast->UnsignedIntTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->UnsignedLongTy))
-        return CompilerType(ast, ast->UnsignedLongTy);
+        return CompilerType(clang_ast_context,
+                            ast->UnsignedLongTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->UnsignedLongLongTy))
-        return CompilerType(ast, ast->UnsignedLongLongTy);
+        return CompilerType(clang_ast_context,
+                            ast->UnsignedLongLongTy.getAsOpaquePtr());
 
       if (bit_size == ast->getTypeSize(ast->UnsignedInt128Ty))
-        return CompilerType(ast, ast->UnsignedInt128Ty);
+        return CompilerType(clang_ast_context,
+                            ast->UnsignedInt128Ty.getAsOpaquePtr());
     }
   }
   return CompilerType();
 }
 
 CompilerType ClangASTContext::GetPointerSizedIntType(clang::ASTContext *ast,
                                                      bool is_signed) {
   if (ast)
bool ClangASTContext::IsArrayType(lldb::opaque_compiler_type_t type,
   const clang::Type::TypeClass type_class = qual_type->getTypeClass();
   switch (type_class) {
   default:
     break;
 
   case clang::Type::ConstantArray:
     if (element_type_ptr)
       element_type_ptr->SetCompilerType(
-          getASTContext(),
-          llvm::cast<clang::ConstantArrayType>(qual_type)->getElementType());
+          this, llvm::cast<clang::ConstantArrayType>(qual_type)
+                    ->getElementType()
+                    .getAsOpaquePtr());
     if (size)
       *size = llvm::cast<clang::ConstantArrayType>(qual_type)
                   ->getSize()
                   .getLimitedValue(ULLONG_MAX);
     if (is_incomplete)
       *is_incomplete = false;
     return true;
 
   case clang::Type::IncompleteArray:
     if (element_type_ptr)
       element_type_ptr->SetCompilerType(
-          getASTContext(),
-          llvm::cast<clang::IncompleteArrayType>(qual_type)->getElementType());
+          this, llvm::cast<clang::IncompleteArrayType>(qual_type)
+                    ->getElementType()
+                    .getAsOpaquePtr());
     if (size)
       *size = 0;
     if (is_incomplete)
       *is_incomplete = true;
     return true;
 
   case clang::Type::VariableArray:
     if (element_type_ptr)
       element_type_ptr->SetCompilerType(
-          getASTContext(),
-          llvm::cast<clang::VariableArrayType>(qual_type)->getElementType());
+          this, llvm::cast<clang::VariableArrayType>(qual_type)
+                    ->getElementType()
+                    .getAsOpaquePtr());
     if (size)
       *size = 0;
     if (is_incomplete)
       *is_incomplete = false;
     return true;
 
   case clang::Type::DependentSizedArray:
     if (element_type_ptr)
       element_type_ptr->SetCompilerType(
-          getASTContext(), llvm::cast<clang::DependentSizedArrayType>(qual_type)
-                               ->getElementType());
+          this, llvm::cast<clang::DependentSizedArrayType>(qual_type)
+                    ->getElementType()
+                    .getAsOpaquePtr());
     if (size)
       *size = 0;
     if (is_incomplete)
       *is_incomplete = false;
     return true;
 
   case clang::Type::Typedef:
     return IsArrayType(llvm::cast<clang::TypedefType>(qual_type)
bool ClangASTContext::IsVectorType(lldb::opaque_compiler_type_t type,
   case clang::Type::Vector: {
     const clang::VectorType *vector_type =
         qual_type->getAs<clang::VectorType>();
     if (vector_type) {
       if (size)
         *size = vector_type->getNumElements();
       if (element_type)
         *element_type =
-            CompilerType(getASTContext(), vector_type->getElementType());
+            CompilerType(this, vector_type->getElementType().getAsOpaquePtr());
     }
     return true;
   } break;
   case clang::Type::ExtVector: {
     const clang::ExtVectorType *ext_vector_type =
         qual_type->getAs<clang::ExtVectorType>();
     if (ext_vector_type) {
       if (size)
         *size = ext_vector_type->getNumElements();
       if (element_type)
         *element_type =
-            CompilerType(getASTContext(), ext_vector_type->getElementType());
+            CompilerType(this, ext_vector_type->getElementType().getAsOpaquePtr());
     }
     return true;
   }
   default:
     break;
   }
   return false;
 }
if (GetCompleteType(type)) {
                 if (field_qual_type.getTypePtr() != base_qual_type.getTypePtr())
                   return 0;
               }
             } else
               return 0;
             ++num_fields;
           }
           if (base_type_ptr)
-            *base_type_ptr = CompilerType(getASTContext(), base_qual_type);
+            *base_type_ptr = CompilerType(this, base_qual_type.getAsOpaquePtr());
           return num_fields;
         }
       }
     }
     break;
 
   case clang::Type::Typedef:
     return IsHomogeneousAggregate(llvm::cast<clang::TypedefType>(qual_type)

 ClangASTContext::GetFunctionArgumentAtIndex(lldb::opaque_compiler_type_t type,
                                             const size_t index) {
   if (type) {
     clang::QualType qual_type(GetQualType(type));
     const clang::FunctionProtoType *func =
         llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
     if (func) {
       if (index < func->getNumParams())
-        return CompilerType(getASTContext(), func->getParamType(index));
+        return CompilerType(this, func->getParamType(index).getAsOpaquePtr());
     }
   }
   return CompilerType();
 }
 
 bool ClangASTContext::IsFunctionPointerType(lldb::opaque_compiler_type_t type) {
   if (type) {
     clang::QualType qual_type(GetCanonicalQualType(type));
if (type) {
 
     if (qual_type->isBlockPointerType()) {
       if (function_pointer_type_ptr) {
         const clang::BlockPointerType *block_pointer_type =
             qual_type->getAs<clang::BlockPointerType>();
         QualType pointee_type = block_pointer_type->getPointeeType();
         QualType function_pointer_type = m_ast_up->getPointerType(pointee_type);
         *function_pointer_type_ptr =
-            CompilerType(getASTContext(), function_pointer_type);
+            CompilerType(this, function_pointer_type.getAsOpaquePtr());
       }
       return true;
     }
 
     const clang::Type::TypeClass type_class = qual_type->getTypeClass();
     switch (type_class) {
     default:
       break;
case clang::Type::Builtin:
       case clang::BuiltinType::ObjCId:
       case clang::BuiltinType::ObjCClass:
         return true;
       }
       return false;
     case clang::Type::ObjCObjectPointer:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(), llvm::cast<clang::ObjCObjectPointerType>(qual_type)
-                                 ->getPointeeType());
+            this, llvm::cast<clang::ObjCObjectPointerType>(qual_type)
+                      ->getPointeeType()
+                      .getAsOpaquePtr());
       return true;
     case clang::Type::BlockPointer:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::BlockPointerType>(qual_type)->getPointeeType());
+            this, llvm::cast<clang::BlockPointerType>(qual_type)
+                      ->getPointeeType()
+                      .getAsOpaquePtr());
       return true;
     case clang::Type::Pointer:
       if (pointee_type)
-        pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::PointerType>(qual_type)->getPointeeType());
+        pointee_type->SetCompilerType(this,
+                                      llvm::cast<clang::PointerType>(qual_type)
+                                          ->getPointeeType()
+                                          .getAsOpaquePtr());
       return true;
     case clang::Type::MemberPointer:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::MemberPointerType>(qual_type)->getPointeeType());
+            this, llvm::cast<clang::MemberPointerType>(qual_type)
+                      ->getPointeeType()
+                      .getAsOpaquePtr());
       return true;
     case clang::Type::Typedef:
       return IsPointerType(llvm::cast<clang::TypedefType>(qual_type)
                                ->getDecl()
                                ->getUnderlyingType()
                                .getAsOpaquePtr(),
                            pointee_type);
     case clang::Type::Auto:
case clang::Type::Builtin:
       case clang::BuiltinType::ObjCId:
       case clang::BuiltinType::ObjCClass:
         return true;
       }
       return false;
     case clang::Type::ObjCObjectPointer:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(), llvm::cast<clang::ObjCObjectPointerType>(qual_type)
-                                 ->getPointeeType());
+            this, llvm::cast<clang::ObjCObjectPointerType>(qual_type)
+                                 ->getPointeeType().getAsOpaquePtr());
       return true;
     case clang::Type::BlockPointer:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::BlockPointerType>(qual_type)->getPointeeType());
+            this, llvm::cast<clang::BlockPointerType>(qual_type)
+                      ->getPointeeType()
+                      .getAsOpaquePtr());
       return true;
     case clang::Type::Pointer:
       if (pointee_type)
-        pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::PointerType>(qual_type)->getPointeeType());
+        pointee_type->SetCompilerType(this,
+                                      llvm::cast<clang::PointerType>(qual_type)
+                                          ->getPointeeType()
+                                          .getAsOpaquePtr());
       return true;
     case clang::Type::MemberPointer:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::MemberPointerType>(qual_type)->getPointeeType());
+            this, llvm::cast<clang::MemberPointerType>(qual_type)
+                      ->getPointeeType()
+                      .getAsOpaquePtr());
       return true;
     case clang::Type::LValueReference:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::LValueReferenceType>(qual_type)->desugar());
+            this, llvm::cast<clang::LValueReferenceType>(qual_type)
+                      ->desugar()
+                      .getAsOpaquePtr());
       return true;
     case clang::Type::RValueReference:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::RValueReferenceType>(qual_type)->desugar());
+            this, llvm::cast<clang::RValueReferenceType>(qual_type)
+                      ->desugar()
+                      .getAsOpaquePtr());
       return true;
     case clang::Type::Typedef:
       return IsPointerOrReferenceType(llvm::cast<clang::TypedefType>(qual_type)
                                           ->getDecl()
                                           ->getUnderlyingType()
                                           .getAsOpaquePtr(),
                                       pointee_type);
     case clang::Type::Auto:
bool ClangASTContext::IsReferenceType(lldb::opaque_compiler_type_t type,
   if (type) {
     clang::QualType qual_type(GetCanonicalQualType(type));
     const clang::Type::TypeClass type_class = qual_type->getTypeClass();
 
     switch (type_class) {
     case clang::Type::LValueReference:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::LValueReferenceType>(qual_type)->desugar());
+            this, llvm::cast<clang::LValueReferenceType>(qual_type)
+                      ->desugar()
+                      .getAsOpaquePtr());
       if (is_rvalue)
         *is_rvalue = false;
       return true;
     case clang::Type::RValueReference:
       if (pointee_type)
         pointee_type->SetCompilerType(
-            getASTContext(),
-            llvm::cast<clang::RValueReferenceType>(qual_type)->desugar());
+            this, llvm::cast<clang::RValueReferenceType>(qual_type)
+                      ->desugar()
+                      .getAsOpaquePtr());
       if (is_rvalue)
         *is_rvalue = true;
       return true;
     case clang::Type::Typedef:
       return IsReferenceType(llvm::cast<clang::TypedefType>(qual_type)
                                  ->getDecl()
                                  ->getUnderlyingType()
                                  .getAsOpaquePtr(),
case clang::Type::ObjCObjectPointer:
                   llvm::dyn_cast_or_null<clang::ObjCObjectType>(
                       objc_pointee_type)) {
             if (objc_object_type->isObjCClass())
               return false;
           }
         }
         if (dynamic_pointee_type)
           dynamic_pointee_type->SetCompilerType(
-              getASTContext(),
-              llvm::cast<clang::ObjCObjectPointerType>(qual_type)
-                  ->getPointeeType());
+              this, llvm::cast<clang::ObjCObjectPointerType>(qual_type)
+                        ->getPointeeType()
+                        .getAsOpaquePtr());
         return true;
       }
       break;
 
     case clang::Type::Pointer:
       pointee_qual_type =
           llvm::cast<clang::PointerType>(qual_type)->getPointeeType();
       success = true;
if (success) {
       const clang::Type::TypeClass pointee_type_class =
           pointee_qual_type.getCanonicalType()->getTypeClass();
       switch (pointee_type_class) {
       case clang::Type::Builtin:
         switch (llvm::cast<clang::BuiltinType>(pointee_qual_type)->getKind()) {
         case clang::BuiltinType::UnknownAny:
         case clang::BuiltinType::Void:
           if (dynamic_pointee_type)
-            dynamic_pointee_type->SetCompilerType(getASTContext(),
-                                                  pointee_qual_type);
+            dynamic_pointee_type->SetCompilerType(
+                this, pointee_qual_type.getAsOpaquePtr());
           return true;
         default:
           break;
         }
         break;
 
       case clang::Type::Record:
         if (check_cplusplus) {
           clang::CXXRecordDecl *cxx_record_decl =
               pointee_qual_type->getAsCXXRecordDecl();
           if (cxx_record_decl) {
             bool is_complete = cxx_record_decl->isCompleteDefinition();
 
             if (is_complete)
               success = cxx_record_decl->isDynamicClass();
             else {
               ClangASTMetadata *metadata = ClangASTContext::GetMetadata(
                   getASTContext(), cxx_record_decl);
               if (metadata)
                 success = metadata->GetIsDynamicCXXType();
               else {
-                is_complete = CompilerType(getASTContext(), pointee_qual_type)
-                                  .GetCompleteType();
+                is_complete =
+                    CompilerType(this, pointee_qual_type.getAsOpaquePtr())
                 if (is_complete)
                   success = cxx_record_decl->isDynamicClass();
                 else
                   success = false;
               }
             }
 
             if (success) {
               if (dynamic_pointee_type)
-                dynamic_pointee_type->SetCompilerType(getASTContext(),
-                                                      pointee_qual_type);
+                dynamic_pointee_type->SetCompilerType(
+                    this, pointee_qual_type.getAsOpaquePtr());
               return true;
             }
           }
         }
         break;
 
       case clang::Type::ObjCObject:
       case clang::Type::ObjCInterface:
         if (check_objc) {
           if (dynamic_pointee_type)
-            dynamic_pointee_type->SetCompilerType(getASTContext(),
-                                                  pointee_qual_type);
+            dynamic_pointee_type->SetCompilerType(
+                this, pointee_qual_type.getAsOpaquePtr());
           return true;
         }
         break;
 
       default:
         break;
       }
     }
const clang::BuiltinType *builtin_type = llvm::dyn_cast<clang::BuiltinType>(
         qual_type->getCanonicalTypeInternal());
 
     uint32_t builtin_type_flags = eTypeIsBuiltIn | eTypeHasValue;
     switch (builtin_type->getKind()) {
     case clang::BuiltinType::ObjCId:
     case clang::BuiltinType::ObjCClass:
       if (pointee_or_element_clang_type)
         pointee_or_element_clang_type->SetCompilerType(
-            getASTContext(), getASTContext()->ObjCBuiltinClassTy);
+            this, getASTContext()->ObjCBuiltinClassTy.getAsOpaquePtr());
       builtin_type_flags |= eTypeIsPointer | eTypeIsObjC;
       break;
 
     case clang::BuiltinType::ObjCSel:
       if (pointee_or_element_clang_type)
-        pointee_or_element_clang_type->SetCompilerType(getASTContext(),
-                                                       getASTContext()->CharTy);
+        pointee_or_element_clang_type->SetCompilerType(
+            this, getASTContext()->CharTy.getAsOpaquePtr());
       builtin_type_flags |= eTypeIsPointer | eTypeIsObjC;
       break;
 
     case clang::BuiltinType::Bool:
     case clang::BuiltinType::Char_U:
     case clang::BuiltinType::UChar:
     case clang::BuiltinType::WChar_U:
     case clang::BuiltinType::Char16:
default:
       break;
     }
     return builtin_type_flags;
   }
 
   case clang::Type::BlockPointer:
     if (pointee_or_element_clang_type)
       pointee_or_element_clang_type->SetCompilerType(
-          getASTContext(), qual_type->getPointeeType());
+          this, qual_type->getPointeeType().getAsOpaquePtr());
     return eTypeIsPointer | eTypeHasChildren | eTypeIsBlock;
 
   case clang::Type::Complex: {
     uint32_t complex_type_flags =
         eTypeIsBuiltIn | eTypeHasValue | eTypeIsComplex;
     const clang::ComplexType *complex_type = llvm::dyn_cast<clang::ComplexType>(
         qual_type->getCanonicalTypeInternal());
     if (complex_type) {
       clang::QualType complex_element_type(complex_type->getElementType());
       if (complex_element_type->isIntegerType())
         complex_type_flags |= eTypeIsFloat;
       else if (complex_element_type->isFloatingType())
         complex_type_flags |= eTypeIsInteger;
     }
     return complex_type_flags;
   } break;
 
   case clang::Type::ConstantArray:
   case clang::Type::DependentSizedArray:
   case clang::Type::IncompleteArray:
   case clang::Type::VariableArray:
     if (pointee_or_element_clang_type)
       pointee_or_element_clang_type->SetCompilerType(
-          getASTContext(), llvm::cast<clang::ArrayType>(qual_type.getTypePtr())
-                               ->getElementType());
+          this, llvm::cast<clang::ArrayType>(qual_type.getTypePtr())
+                    ->getElementType()
+                    .getAsOpaquePtr());
     return eTypeHasChildren | eTypeIsArray;
 
   case clang::Type::DependentName:
     return 0;
   case clang::Type::DependentSizedExtVector:
     return eTypeHasChildren | eTypeIsVector;
   case clang::Type::DependentTemplateSpecialization:
     return eTypeIsTemplate;
   case clang::Type::Decltype:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::DecltypeType>(qual_type)->getUnderlyingType())
+    return CompilerType(this, llvm::cast<clang::DecltypeType>(qual_type)
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetTypeInfo(pointee_or_element_clang_type);
 
   case clang::Type::Enum:
     if (pointee_or_element_clang_type)
       pointee_or_element_clang_type->SetCompilerType(
-          getASTContext(),
-          llvm::cast<clang::EnumType>(qual_type)->getDecl()->getIntegerType());
+          this, llvm::cast<clang::EnumType>(qual_type)
+                    ->getDecl()
+                    ->getIntegerType()
+                    .getAsOpaquePtr());
     return eTypeIsEnumeration | eTypeHasValue;
 
   case clang::Type::Auto:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+    return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                  ->getDeducedType()
+                                  .getAsOpaquePtr())
         .GetTypeInfo(pointee_or_element_clang_type);
   case clang::Type::Elaborated:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+    return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                  ->getNamedType()
+                                  .getAsOpaquePtr())
         .GetTypeInfo(pointee_or_element_clang_type);
   case clang::Type::Paren:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::ParenType>(qual_type)->desugar())
+    return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                  ->desugar()
+                                  .getAsOpaquePtr())
         .GetTypeInfo(pointee_or_element_clang_type);
 
   case clang::Type::FunctionProto:
     return eTypeIsFuncPrototype | eTypeHasValue;
   case clang::Type::FunctionNoProto:
     return eTypeIsFuncPrototype | eTypeHasValue;
   case clang::Type::InjectedClassName:
     return 0;
 
   case clang::Type::LValueReference:
   case clang::Type::RValueReference:
     if (pointee_or_element_clang_type)
       pointee_or_element_clang_type->SetCompilerType(
-          getASTContext(),
-          llvm::cast<clang::ReferenceType>(qual_type.getTypePtr())
-              ->getPointeeType());
+          this, llvm::cast<clang::ReferenceType>(qual_type.getTypePtr())
+                    ->getPointeeType()
+                    .getAsOpaquePtr());
     return eTypeHasChildren | eTypeIsReference | eTypeHasValue;
 
   case clang::Type::MemberPointer:
     return eTypeIsPointer | eTypeIsMember | eTypeHasValue;
 
   case clang::Type::ObjCObjectPointer:
     if (pointee_or_element_clang_type)
       pointee_or_element_clang_type->SetCompilerType(
-          getASTContext(), qual_type->getPointeeType());
+          this, qual_type->getPointeeType().getAsOpaquePtr());
     return eTypeHasChildren | eTypeIsObjC | eTypeIsClass | eTypeIsPointer |
            eTypeHasValue;
 
   case clang::Type::ObjCObject:
     return eTypeHasChildren | eTypeIsObjC | eTypeIsClass;
   case clang::Type::ObjCInterface:
     return eTypeHasChildren | eTypeIsObjC | eTypeIsClass;
 
   case clang::Type::Pointer:
     if (pointee_or_element_clang_type)
       pointee_or_element_clang_type->SetCompilerType(
-          getASTContext(), qual_type->getPointeeType());
+          this, qual_type->getPointeeType().getAsOpaquePtr());
     return eTypeHasChildren | eTypeIsPointer | eTypeHasValue;
 
   case clang::Type::Record:
     if (qual_type->getAsCXXRecordDecl())
       return eTypeHasChildren | eTypeIsClass | eTypeIsCPlusPlus;
     else
       return eTypeHasChildren | eTypeIsStructUnion;
     break;
   case clang::Type::SubstTemplateTypeParm:
     return eTypeIsTemplate;
   case clang::Type::TemplateTypeParm:
     return eTypeIsTemplate;
   case clang::Type::TemplateSpecialization:
     return eTypeIsTemplate;
 
   case clang::Type::Typedef:
     return eTypeIsTypedef |
-           CompilerType(getASTContext(),
-                        llvm::cast<clang::TypedefType>(qual_type)
+           CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                   ->getDecl()
-                            ->getUnderlyingType())
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
                .GetTypeInfo(pointee_or_element_clang_type);
   case clang::Type::TypeOfExpr:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::TypeOfExprType>(qual_type)
+    return CompilerType(this, llvm::cast<clang::TypeOfExprType>(qual_type)
                                   ->getUnderlyingExpr()
-                            ->getType())
+                                  ->getType()
+                                  .getAsOpaquePtr())
         .GetTypeInfo(pointee_or_element_clang_type);
   case clang::Type::TypeOf:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
+    return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type)
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetTypeInfo(pointee_or_element_clang_type);
   case clang::Type::UnresolvedUsing:
     return 0;
 
   case clang::Type::ExtVector:
   case clang::Type::Vector: {
     uint32_t vector_type_flags = eTypeHasChildren | eTypeIsVector;
     const clang::VectorType *vector_type = llvm::dyn_cast<clang::VectorType>(
case clang::Type::Builtin:
       case clang::BuiltinType::Dependent:
       case clang::BuiltinType::Overload:
       case clang::BuiltinType::BoundMember:
       case clang::BuiltinType::UnknownAny:
         break;
       }
       break;
     case clang::Type::Typedef:
-      return CompilerType(getASTContext(),
-                          llvm::cast<clang::TypedefType>(qual_type)
+      return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                     ->getDecl()
-                              ->getUnderlyingType())
+                                    ->getUnderlyingType()
+                                    .getAsOpaquePtr())
           .GetMinimumLanguage();
     }
   }
   return lldb::eLanguageTypeC;
 }
 
 lldb::TypeClass
 ClangASTContext::GetTypeClass(lldb::opaque_compiler_type_t type) {
ClangASTContext::GetTypeClass(lldb::opaque_compiler_type_t type) {
   } break;
   case clang::Type::Enum:
     return lldb::eTypeClassEnumeration;
   case clang::Type::Typedef:
     return lldb::eTypeClassTypedef;
   case clang::Type::UnresolvedUsing:
     break;
   case clang::Type::Paren:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::ParenType>(qual_type)->desugar())
+    return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                  ->desugar()
+                                  .getAsOpaquePtr())
         .GetTypeClass();
   case clang::Type::Auto:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+    return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                  ->getDeducedType()
+                                  .getAsOpaquePtr())
         .GetTypeClass();
   case clang::Type::Elaborated:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+    return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                  ->getNamedType()
+                                  .getAsOpaquePtr())
         .GetTypeClass();
 
   case clang::Type::Attributed:
     break;
   case clang::Type::TemplateTypeParm:
     break;
   case clang::Type::SubstTemplateTypeParm:
     break;
   case clang::Type::SubstTemplateTypeParmPack:
     break;
   case clang::Type::InjectedClassName:
     break;
   case clang::Type::DependentName:
     break;
   case clang::Type::DependentTemplateSpecialization:
     break;
   case clang::Type::PackExpansion:
     break;
 
   case clang::Type::TypeOfExpr:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::TypeOfExprType>(qual_type)
+    return CompilerType(this, llvm::cast<clang::TypeOfExprType>(qual_type)
                                   ->getUnderlyingExpr()
-                            ->getType())
+                                  ->getType()
+                                  .getAsOpaquePtr())
         .GetTypeClass();
   case clang::Type::TypeOf:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
+    return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type)
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetTypeClass();
   case clang::Type::Decltype:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
+    return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type)
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetTypeClass();
   case clang::Type::TemplateSpecialization:
     break;
   case clang::Type::DeducedTemplateSpecialization:
     break;
   case clang::Type::Atomic:
     break;
   case clang::Type::Pipe:
if (type) {
     clang::QualType qual_type(GetCanonicalQualType(type));
 
     const clang::Type *array_eletype =
         qual_type.getTypePtr()->getArrayElementTypeNoTypeQual();
 
     if (!array_eletype)
       return CompilerType();
 
-    CompilerType element_type(getASTContext(),
-                              array_eletype->getCanonicalTypeUnqualified());
+    CompilerType element_type(
+        this, array_eletype->getCanonicalTypeUnqualified().getAsOpaquePtr());
 
     // TODO: the real stride will be >= this value.. find the real one!
     if (stride)
       if (Optional<uint64_t> size = element_type.GetByteSize(nullptr))
         *stride = *size;
 
     return element_type;
   }
   return CompilerType();
 }
 
 CompilerType ClangASTContext::GetArrayType(lldb::opaque_compiler_type_t type,
                                            uint64_t size) {
   if (type) {
     clang::QualType qual_type(GetCanonicalQualType(type));
     if (clang::ASTContext *ast_ctx = getASTContext()) {
       if (size != 0)
         return CompilerType(
-            ast_ctx, ast_ctx->getConstantArrayType(
+            this, ast_ctx
+                      ->getConstantArrayType(
                           qual_type, llvm::APInt(64, size),
-                         clang::ArrayType::ArraySizeModifier::Normal, 0));
+                          clang::ArrayType::ArraySizeModifier::Normal, 0)
+                      .getAsOpaquePtr());
       else
         return CompilerType(
-            ast_ctx,
-            ast_ctx->getIncompleteArrayType(
-                qual_type, clang::ArrayType::ArraySizeModifier::Normal, 0));
+            this,
+            ast_ctx
+                ->getIncompleteArrayType(
+                    qual_type, clang::ArrayType::ArraySizeModifier::Normal, 0)
+                .getAsOpaquePtr());
     }
   }
 
   return CompilerType();
 }
 
 CompilerType
 ClangASTContext::GetCanonicalType(lldb::opaque_compiler_type_t type) {
   if (type)
-    return CompilerType(getASTContext(), GetCanonicalQualType(type));
+    return CompilerType(this, GetCanonicalQualType(type).getAsOpaquePtr());
   return CompilerType();
 }
 
 static clang::QualType GetFullyUnqualifiedType_Impl(clang::ASTContext *ast,
                                                     clang::QualType qual_type) {
   if (qual_type->isPointerType())
     qual_type = ast->getPointerType(
         GetFullyUnqualifiedType_Impl(ast, qual_type->getPointeeType()));
   else
     qual_type = qual_type.getUnqualifiedType();
   qual_type.removeLocalConst();
   qual_type.removeLocalRestrict();
   qual_type.removeLocalVolatile();
   return qual_type;
 }
 
 CompilerType
 ClangASTContext::GetFullyUnqualifiedType(lldb::opaque_compiler_type_t type) {
   if (type)
     return CompilerType(
-        getASTContext(),
-        GetFullyUnqualifiedType_Impl(getASTContext(), GetQualType(type)));
+        this,
+        GetFullyUnqualifiedType_Impl(getASTContext(), GetQualType(type)).getAsOpaquePtr());
   return CompilerType();
 }
 
 int ClangASTContext::GetFunctionArgumentCount(
     lldb::opaque_compiler_type_t type) {
   if (type) {
     const clang::FunctionProtoType *func =
         llvm::dyn_cast<clang::FunctionProtoType>(GetCanonicalQualType(type));
     if (func)
       return func->getNumParams();
   }
   return -1;
 }
 
 CompilerType ClangASTContext::GetFunctionArgumentTypeAtIndex(
     lldb::opaque_compiler_type_t type, size_t idx) {
   if (type) {
     const clang::FunctionProtoType *func =
         llvm::dyn_cast<clang::FunctionProtoType>(GetQualType(type));
     if (func) {
       const uint32_t num_args = func->getNumParams();
       if (idx < num_args)
-        return CompilerType(getASTContext(), func->getParamType(idx));
+        return CompilerType(this, func->getParamType(idx).getAsOpaquePtr());
     }
   }
   return CompilerType();
 }
 
 CompilerType
 ClangASTContext::GetFunctionReturnType(lldb::opaque_compiler_type_t type) {
   if (type) {
     clang::QualType qual_type(GetQualType(type));
     const clang::FunctionProtoType *func =
         llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
     if (func)
-      return CompilerType(getASTContext(), func->getReturnType());
+      return CompilerType(this, func->getReturnType().getAsOpaquePtr());
   }
   return CompilerType();
 }
 
 size_t
 ClangASTContext::GetNumMemberFunctions(lldb::opaque_compiler_type_t type) {
   size_t num_functions = 0;
   if (type) {
case clang::Type::ObjCInterface:
           if (class_interface_decl)
             num_functions = std::distance(class_interface_decl->meth_begin(),
                                           class_interface_decl->meth_end());
         }
       }
       break;
 
     case clang::Type::Typedef:
-      return CompilerType(getASTContext(),
-                          llvm::cast<clang::TypedefType>(qual_type)
+      return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                     ->getDecl()
-                              ->getUnderlyingType())
+                                    ->getUnderlyingType()
+                                    .getAsOpaquePtr())
           .GetNumMemberFunctions();
 
     case clang::Type::Auto:
-      return CompilerType(
-                 getASTContext(),
-                 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+      return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                    ->getDeducedType()
+                                    .getAsOpaquePtr())
           .GetNumMemberFunctions();
 
     case clang::Type::Elaborated:
-      return CompilerType(
-                 getASTContext(),
-                 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+      return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                    ->getNamedType()
+                                    .getAsOpaquePtr())
           .GetNumMemberFunctions();
 
     case clang::Type::Paren:
-      return CompilerType(getASTContext(),
-                          llvm::cast<clang::ParenType>(qual_type)->desugar())
+      return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                    ->desugar()
+                                    .getAsOpaquePtr())
           .GetNumMemberFunctions();
 
     default:
       break;
     }
   }
   return num_functions;
 }
if (kind == eMemberFunctionKindUnknown)
     return TypeMemberFunctionImpl();
   else
     return TypeMemberFunctionImpl(clang_type, clang_decl, name, kind);
 }
 
 CompilerType
 ClangASTContext::GetNonReferenceType(lldb::opaque_compiler_type_t type) {
   if (type)
-    return CompilerType(getASTContext(),
-                        GetQualType(type).getNonReferenceType());
+    return CompilerType(
+        this, GetQualType(type).getNonReferenceType().getAsOpaquePtr());
   return CompilerType();
 }
 
 CompilerType ClangASTContext::CreateTypedefType(
     const CompilerType &type, const char *typedef_name,
     const CompilerDeclContext &compiler_decl_ctx) {
   if (type && typedef_name && typedef_name[0]) {
     ClangASTContext *ast =
clang::TypedefDecl *decl = clang::TypedefDecl::Create(
         &clang_ast->Idents.get(typedef_name),
         clang_ast->getTrivialTypeSourceInfo(qual_type));
 
     decl->setAccess(clang::AS_public); // TODO respect proper access specifier
 
     decl_ctx->addDecl(decl);
 
     // Get a uniqued clang::QualType for the typedef decl type
-    return CompilerType(clang_ast, clang_ast->getTypedefType(decl));
+    return CompilerType(ast, clang_ast->getTypedefType(decl).getAsOpaquePtr());
   }
   return CompilerType();
 }
 
 CompilerType
 ClangASTContext::GetPointeeType(lldb::opaque_compiler_type_t type) {
   if (type) {
     clang::QualType qual_type(GetQualType(type));
-    return CompilerType(getASTContext(),
-                        qual_type.getTypePtr()->getPointeeType());
+    return CompilerType(
+        this, qual_type.getTypePtr()->getPointeeType().getAsOpaquePtr());
   }
   return CompilerType();
 }
 
 CompilerType
 ClangASTContext::GetPointerType(lldb::opaque_compiler_type_t type) {
   if (type) {
     clang::QualType qual_type(GetQualType(type));
 
     const clang::Type::TypeClass type_class = qual_type->getTypeClass();
     switch (type_class) {
     case clang::Type::ObjCObject:
     case clang::Type::ObjCInterface:
-      return CompilerType(getASTContext(),
-                          getASTContext()->getObjCObjectPointerType(qual_type));
+      return CompilerType(this, getASTContext()
+                                    ->getObjCObjectPointerType(qual_type)
+                                    .getAsOpaquePtr());
 
     default:
-      return CompilerType(getASTContext(),
-                          getASTContext()->getPointerType(qual_type));
+      return CompilerType(
+          this, getASTContext()->getPointerType(qual_type).getAsOpaquePtr());
     }
   }
   return CompilerType();
 }
 
 CompilerType
 ClangASTContext::GetLValueReferenceType(lldb::opaque_compiler_type_t type) {
   if (type)

 }
 
 CompilerType
 ClangASTContext::GetTypedefedType(lldb::opaque_compiler_type_t type) {
   if (type) {
     const clang::TypedefType *typedef_type =
         llvm::dyn_cast<clang::TypedefType>(GetQualType(type));
     if (typedef_type)
-      return CompilerType(getASTContext(),
-                          typedef_type->getDecl()->getUnderlyingType());
+      return CompilerType(
+          this, typedef_type->getDecl()->getUnderlyingType().getAsOpaquePtr());
   }
   return CompilerType();
 }
 
 // Create related types using the current type's AST
 
 CompilerType ClangASTContext::GetBasicTypeFromAST(lldb::BasicType basic_type) {
   return ClangASTContext::GetBasicType(getASTContext(), basic_type);
if (GetCompleteType(type)) {
     case clang::Type::ObjCObject: {
       ExecutionContext exe_ctx(exe_scope);
       Process *process = exe_ctx.GetProcessPtr();
       if (process) {
         ObjCLanguageRuntime *objc_runtime = ObjCLanguageRuntime::Get(*process);
         if (objc_runtime) {
           uint64_t bit_size = 0;
           if (objc_runtime->GetTypeBitSize(
-                  CompilerType(getASTContext(), qual_type), bit_size))
+                  CompilerType(this, qual_type.getAsOpaquePtr()), bit_size))
             return bit_size;
         }
       } else {
         static bool g_printed = false;
         if (!g_printed) {
           StreamString s;
           DumpTypeDescription(type, &s);
 
lldb::Encoding ClangASTContext::GetEncoding(lldb::opaque_compiler_type_t type,
   case clang::Type::Complex: {
     lldb::Encoding encoding = lldb::eEncodingIEEE754;
     if (qual_type->isComplexType())
       encoding = lldb::eEncodingIEEE754;
     else {
       const clang::ComplexType *complex_type =
           qual_type->getAsComplexIntegerType();
       if (complex_type)
-        encoding = CompilerType(getASTContext(), complex_type->getElementType())
-                       .GetEncoding(count);
+        encoding =
+            CompilerType(this, complex_type->getElementType().getAsOpaquePtr())
       else
         encoding = lldb::eEncodingSint;
     }
     count = 2;
     return encoding;
   }
 
   case clang::Type::ObjCInterface:
     break;
   case clang::Type::Record:
     break;
   case clang::Type::Enum:
     return lldb::eEncodingSint;
   case clang::Type::Typedef:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::TypedefType>(qual_type)
+    return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                   ->getDecl()
-                            ->getUnderlyingType())
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetEncoding(count);
 
   case clang::Type::Auto:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+    return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                  ->getDeducedType()
+                                  .getAsOpaquePtr())
         .GetEncoding(count);
 
   case clang::Type::Elaborated:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+    return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                  ->getNamedType()
+                                  .getAsOpaquePtr())
         .GetEncoding(count);
 
   case clang::Type::Paren:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::ParenType>(qual_type)->desugar())
+    return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                  ->desugar()
+                                  .getAsOpaquePtr())
         .GetEncoding(count);
   case clang::Type::TypeOfExpr:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::TypeOfExprType>(qual_type)
+    return CompilerType(this, llvm::cast<clang::TypeOfExprType>(qual_type)
                                   ->getUnderlyingExpr()
-                            ->getType())
+                                  ->getType()
+                                  .getAsOpaquePtr())
         .GetEncoding(count);
   case clang::Type::TypeOf:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
+    return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type)
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetEncoding(count);
   case clang::Type::Decltype:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::DecltypeType>(qual_type)->getUnderlyingType())
+    return CompilerType(this, llvm::cast<clang::DecltypeType>(qual_type)
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetEncoding(count);
   case clang::Type::DependentSizedArray:
   case clang::Type::DependentSizedExtVector:
   case clang::Type::UnresolvedUsing:
   case clang::Type::Attributed:
   case clang::Type::TemplateTypeParm:
   case clang::Type::SubstTemplateTypeParm:
   case clang::Type::SubstTemplateTypeParmPack:
lldb::Format ClangASTContext::GetFormat(lldb::opaque_compiler_type_t type) {
   }
   case clang::Type::ObjCInterface:
     break;
   case clang::Type::Record:
     break;
   case clang::Type::Enum:
     return lldb::eFormatEnum;
   case clang::Type::Typedef:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::TypedefType>(qual_type)
+    return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                   ->getDecl()
-                            ->getUnderlyingType())
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetFormat();
   case clang::Type::Auto:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::AutoType>(qual_type)->desugar())
+    return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                  ->desugar()
+                                  .getAsOpaquePtr())
         .GetFormat();
   case clang::Type::Paren:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::ParenType>(qual_type)->desugar())
+    return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                  ->desugar()
+                                  .getAsOpaquePtr())
         .GetFormat();
   case clang::Type::Elaborated:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+    return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                  ->getNamedType()
+                                  .getAsOpaquePtr())
         .GetFormat();
   case clang::Type::TypeOfExpr:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::TypeOfExprType>(qual_type)
+    return CompilerType(this, llvm::cast<clang::TypeOfExprType>(qual_type)
                                   ->getUnderlyingExpr()
-                            ->getType())
+                                  ->getType()
+                                  .getAsOpaquePtr())
         .GetFormat();
   case clang::Type::TypeOf:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
+    return CompilerType(this, llvm::cast<clang::TypeOfType>(qual_type)
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetFormat();
   case clang::Type::Decltype:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::DecltypeType>(qual_type)->getUnderlyingType())
+    return CompilerType(this, llvm::cast<clang::DecltypeType>(qual_type)
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetFormat();
   case clang::Type::DependentSizedArray:
   case clang::Type::DependentSizedExtVector:
   case clang::Type::UnresolvedUsing:
   case clang::Type::Attributed:
   case clang::Type::TemplateTypeParm:
   case clang::Type::SubstTemplateTypeParm:
   case clang::Type::SubstTemplateTypeParmPack:
case clang::Type::ObjCInterface:
     }
     break;
 
   case clang::Type::ObjCObjectPointer: {
     const clang::ObjCObjectPointerType *pointer_type =
         llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr());
     clang::QualType pointee_type = pointer_type->getPointeeType();
     uint32_t num_pointee_children =
-        CompilerType(getASTContext(), pointee_type)
+        CompilerType(this, pointee_type.getAsOpaquePtr())
             .GetNumChildren(omit_empty_base_classes, exe_ctx);
     // If this type points to a simple type, then it has 1 child
     if (num_pointee_children == 0)
       num_children = 1;
     else
       num_children = num_pointee_children;
   } break;
 
if (auto array_info =
                          : 0;
     break;
 
   case clang::Type::Pointer: {
     const clang::PointerType *pointer_type =
         llvm::cast<clang::PointerType>(qual_type.getTypePtr());
     clang::QualType pointee_type(pointer_type->getPointeeType());
     uint32_t num_pointee_children =
-        CompilerType(getASTContext(), pointee_type)
+        CompilerType(this, pointee_type.getAsOpaquePtr())
       .GetNumChildren(omit_empty_base_classes, exe_ctx);
     if (num_pointee_children == 0) {
       // We have a pointer to a pointee type that claims it has no children. We
       // will want to look at
       num_children = GetNumPointeeChildren(pointee_type);
     } else
       num_children = num_pointee_children;
   } break;
 
   case clang::Type::LValueReference:
   case clang::Type::RValueReference: {
     const clang::ReferenceType *reference_type =
         llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
     clang::QualType pointee_type = reference_type->getPointeeType();
     uint32_t num_pointee_children =
-        CompilerType(getASTContext(), pointee_type)
+        CompilerType(this, pointee_type.getAsOpaquePtr())
             .GetNumChildren(omit_empty_base_classes, exe_ctx);
     // If this type points to a simple type, then it has 1 child
     if (num_pointee_children == 0)
       num_children = 1;
     else
       num_children = num_pointee_children;
   } break;
 
   case clang::Type::Typedef:
-    num_children =
-        CompilerType(getASTContext(), llvm::cast<clang::TypedefType>(qual_type)
+    num_children = CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                           ->getDecl()
-                                          ->getUnderlyingType())
+                                          ->getUnderlyingType()
+                                          .getAsOpaquePtr())
                        .GetNumChildren(omit_empty_base_classes, exe_ctx);
     break;
 
   case clang::Type::Auto:
-    num_children =
-        CompilerType(getASTContext(),
-                     llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+    num_children = CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                          ->getDeducedType()
+                                          .getAsOpaquePtr())
                        .GetNumChildren(omit_empty_base_classes, exe_ctx);
     break;
 
   case clang::Type::Elaborated:
     num_children =
-        CompilerType(
-            getASTContext(),
-            llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+        CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                               ->getNamedType()
+                               .getAsOpaquePtr())
             .GetNumChildren(omit_empty_base_classes, exe_ctx);
     break;
 
   case clang::Type::Paren:
     num_children =
-        CompilerType(getASTContext(),
-                     llvm::cast<clang::ParenType>(qual_type)->desugar())
+        CompilerType(
+            this,
+            llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())
             .GetNumChildren(omit_empty_base_classes, exe_ctx);
     break;
   default:
     break;
   }
   return num_children;
 }
 
if (GetCompleteType(type)) {
             ++field_idx;
           count = field_idx;
         }
       }
     }
     break;
 
   case clang::Type::Typedef:
-    count =
-        CompilerType(getASTContext(), llvm::cast<clang::TypedefType>(qual_type)
-                                          ->getDecl()
-                                          ->getUnderlyingType())
+    count = CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
+                                   ->getUnderlyingType()
+                                   .getAsOpaquePtr())
                 .GetNumFields();
     break;
 
   case clang::Type::Auto:
-    count =
-        CompilerType(getASTContext(),
-                     llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+    count = CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                   ->getDeducedType()
+                                   .getAsOpaquePtr())
                 .GetNumFields();
     break;
 
   case clang::Type::Elaborated:
-    count = CompilerType(
-                getASTContext(),
-                llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+    count = CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                   ->getNamedType()
+                                   .getAsOpaquePtr())
                 .GetNumFields();
     break;
 
   case clang::Type::Paren:
-    count = CompilerType(getASTContext(),
-                         llvm::cast<clang::ParenType>(qual_type)->desugar())
-                .GetNumFields();
+    count =
+        CompilerType(
+            this,
+            llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())
     break;
 
   case clang::Type::ObjCObjectPointer: {
     const clang::ObjCObjectPointerType *objc_class_type =
         qual_type->getAs<clang::ObjCObjectPointerType>();
     const clang::ObjCInterfaceType *objc_interface_type =
         objc_class_type->getInterfaceType();
     if (objc_interface_type &&
if (GetCompleteType(type)) {
                 llvm::APSInt bitfield_apsint = result.Val.getInt();
                 *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue();
               }
             }
           }
           if (is_bitfield_ptr)
             *is_bitfield_ptr = is_bitfield;
 
-          return CompilerType(getASTContext(), field->getType());
+          return CompilerType(this, field->getType().getAsOpaquePtr());
         }
       }
     }
     break;
 
   case clang::Type::ObjCObjectPointer: {
     const clang::ObjCObjectPointerType *objc_class_type =
         qual_type->getAs<clang::ObjCObjectPointerType>();
if (GetCompleteType(type)) {
             this, GetObjCFieldAtIndex(getASTContext(), class_interface_decl,
                                       idx, name, bit_offset_ptr,
                                       bitfield_bit_size_ptr, is_bitfield_ptr));
       }
     }
     break;
 
   case clang::Type::Typedef:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::TypedefType>(qual_type)
+    return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                   ->getDecl()
-                            ->getUnderlyingType())
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr,
                          is_bitfield_ptr);
 
   case clang::Type::Auto:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+    return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                  ->getDeducedType()
+                                  .getAsOpaquePtr())
         .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr,
                          is_bitfield_ptr);
 
   case clang::Type::Elaborated:
-    return CompilerType(
-               getASTContext(),
-               llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+    return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                  ->getNamedType()
+                                  .getAsOpaquePtr())
         .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr,
                          is_bitfield_ptr);
 
   case clang::Type::Paren:
-    return CompilerType(getASTContext(),
-                        llvm::cast<clang::ParenType>(qual_type)->desugar())
+    return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                  ->desugar()
+                                  .getAsOpaquePtr())
         .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr,
                          is_bitfield_ptr);
 
   default:
     break;
   }
   return CompilerType();
 }
if (idx == 0 && GetCompleteType(type)) {
             objc_class_type->getInterface();
 
         if (class_interface_decl) {
           clang::ObjCInterfaceDecl *superclass_interface_decl =
               class_interface_decl->getSuperClass();
           if (superclass_interface_decl) {
             if (bit_offset_ptr)
               *bit_offset_ptr = 0;
-            return CompilerType(getASTContext(),
+            return CompilerType(this,
                                 getASTContext()->getObjCInterfaceType(
-                                    superclass_interface_decl));
+                                    superclass_interface_decl).getAsOpaquePtr());
           }
         }
       }
     }
     break;
   case clang::Type::ObjCInterface:
     if (idx == 0 && GetCompleteType(type)) {
       const clang::ObjCObjectType *objc_interface_type =
           qual_type->getAs<clang::ObjCInterfaceType>();
       if (objc_interface_type) {
         clang::ObjCInterfaceDecl *class_interface_decl =
             objc_interface_type->getInterface();
 
         if (class_interface_decl) {
           clang::ObjCInterfaceDecl *superclass_interface_decl =
               class_interface_decl->getSuperClass();
           if (superclass_interface_decl) {
             if (bit_offset_ptr)
               *bit_offset_ptr = 0;
-            return CompilerType(getASTContext(),
-                                getASTContext()->getObjCInterfaceType(
-                                    superclass_interface_decl));
+            return CompilerType(
+                this, getASTContext()
+                          ->getObjCInterfaceType(superclass_interface_decl)
+                          .getAsOpaquePtr());
           }
         }
       }
     }
     break;
 
   case clang::Type::Typedef:
     return GetDirectBaseClassAtIndex(llvm::cast<clang::TypedefType>(qual_type)
case clang::Type::Builtin:
     if (idx_is_valid) {
       switch (llvm::cast<clang::BuiltinType>(parent_qual_type)->getKind()) {
       case clang::BuiltinType::ObjCId:
       case clang::BuiltinType::ObjCClass:
         child_name = "isa";
         child_byte_size =
             getASTContext()->getTypeSize(getASTContext()->ObjCBuiltinClassTy) /
             CHAR_BIT;
-        return CompilerType(getASTContext(),
-                            getASTContext()->ObjCBuiltinClassTy);
+        return CompilerType(
+            this, getASTContext()->ObjCBuiltinClassTy.getAsOpaquePtr());
 
       default:
         break;
       }
     }
     break;
 
   case clang::Type::Record:
if (idx_is_valid && GetCompleteType(type)) {
                              8;
             } else
               bit_offset = record_layout.getBaseClassOffset(base_class_decl)
                                .getQuantity() *
                            8;
 
             // Base classes should be a multiple of 8 bits in size
             child_byte_offset = bit_offset / 8;
-            CompilerType base_class_clang_type(getASTContext(),
-                                               base_class->getType());
+            CompilerType base_class_clang_type(
+                this, base_class->getType().getAsOpaquePtr());
             child_name = base_class_clang_type.GetTypeName().AsCString("");
             Optional<uint64_t> size =
                 base_class_clang_type.GetBitSize(get_exe_scope());
             if (!size)
               return {};
             uint64_t base_class_clang_type_bit_size = *size;
 
             // Base classes bit sizes should be a multiple of 8 bits in size
if (idx_is_valid && GetCompleteType(type)) {
            field != field_end; ++field, ++field_idx, ++child_idx) {
         if (idx == child_idx) {
           // Print the member type if requested
           // Print the member name and equal sign
           child_name.assign(field->getNameAsString());
 
           // Figure out the type byte size (field_type_info.first) and
           // alignment (field_type_info.second) from the AST context.
-          CompilerType field_clang_type(getASTContext(), field->getType());
+          CompilerType field_clang_type(this,
+                                        field->getType().getAsOpaquePtr());
           assert(field_idx < record_layout.getFieldCount());
           Optional<uint64_t> size =
               field_clang_type.GetByteSize(get_exe_scope());
           if (!size)
             return {};
           child_byte_size = *size;
           const uint32_t child_bit_size = child_byte_size * 8;
 
if (idx_is_valid && GetCompleteType(type)) {
 
           const clang::ASTRecordLayout &interface_layout =
               getASTContext()->getASTObjCInterfaceLayout(class_interface_decl);
           clang::ObjCInterfaceDecl *superclass_interface_decl =
               class_interface_decl->getSuperClass();
           if (superclass_interface_decl) {
             if (omit_empty_base_classes) {
               CompilerType base_class_clang_type(
-                  getASTContext(), getASTContext()->getObjCInterfaceType(
-                                       superclass_interface_decl));
+                  this, getASTContext()
+                            ->getObjCInterfaceType(superclass_interface_decl)
+                            .getAsOpaquePtr());
               if (base_class_clang_type.GetNumChildren(omit_empty_base_classes,
                                                        exe_ctx) > 0) {
                 if (idx == 0) {
                   clang::QualType ivar_qual_type(
                       getASTContext()->getObjCInterfaceType(
                           superclass_interface_decl));
 
                   child_name.assign(
                       superclass_interface_decl->getNameAsString());
 
                   clang::TypeInfo ivar_type_info =
                       getASTContext()->getTypeInfo(ivar_qual_type.getTypePtr());
 
                   child_byte_size = ivar_type_info.Width / 8;
                   child_byte_offset = 0;
                   child_is_base_class = true;
 
-                  return CompilerType(getASTContext(), ivar_qual_type);
+                  return CompilerType(this, ivar_qual_type.getAsOpaquePtr());
                 }
 
                 ++child_idx;
               }
             } else
               ++child_idx;
           }
 
if (idx_is_valid && GetCompleteType(type)) {
                 child_byte_offset = LLDB_INVALID_IVAR_OFFSET;
                 Process *process = nullptr;
                 if (exe_ctx)
                   process = exe_ctx->GetProcessPtr();
                 if (process) {
                   ObjCLanguageRuntime *objc_runtime =
                       ObjCLanguageRuntime::Get(*process);
                   if (objc_runtime != nullptr) {
-                    CompilerType parent_ast_type(getASTContext(),
-                                                 parent_qual_type);
+                    CompilerType parent_ast_type(
+                        this, parent_qual_type.getAsOpaquePtr());
                     child_byte_offset = objc_runtime->GetByteOffsetForIvar(
                         parent_ast_type, ivar_decl->getNameAsString().c_str());
                   }
                 }
 
                 // Setting this to INT32_MAX to make sure we don't compute it
                 // twice...
                 bit_offset = INT32_MAX;
if (idx_is_valid && GetCompleteType(type)) {
                 if (ClangASTContext::FieldIsBitfield(getASTContext(), ivar_decl,
                                                      child_bitfield_bit_size)) {
                   if (bit_offset == INT32_MAX)
                     bit_offset = interface_layout.getFieldOffset(
                         child_idx - superclass_idx);
 
                   child_bitfield_bit_offset = bit_offset % 8;
                 }
-                return CompilerType(getASTContext(), ivar_qual_type);
+                return CompilerType(this, ivar_qual_type.getAsOpaquePtr());
               }
               ++child_idx;
             }
           }
         }
       }
     }
     break;
case clang::Type::ObjCObjectPointer:
     break;
 
   case clang::Type::Vector:
   case clang::Type::ExtVector:
     if (idx_is_valid) {
       const clang::VectorType *array =
           llvm::cast<clang::VectorType>(parent_qual_type.getTypePtr());
       if (array) {
-        CompilerType element_type(getASTContext(), array->getElementType());
+        CompilerType element_type(this,
+                                  array->getElementType().getAsOpaquePtr());
         if (element_type.GetCompleteType()) {
           char element_name[64];
           ::snprintf(element_name, sizeof(element_name), "[%" PRIu64 "]",
                      static_cast<uint64_t>(idx));
           child_name.assign(element_name);
           if (Optional<uint64_t> size =
                   element_type.GetByteSize(get_exe_scope())) {
             child_byte_size = *size;
             child_byte_offset = (int32_t)idx * (int32_t)child_byte_size;
             return element_type;
           }
         }
       }
     }
     break;
 
   case clang::Type::ConstantArray:
   case clang::Type::IncompleteArray:
     if (ignore_array_bounds || idx_is_valid) {
       const clang::ArrayType *array = GetQualType(type)->getAsArrayTypeUnsafe();
       if (array) {
-        CompilerType element_type(getASTContext(), array->getElementType());
+        CompilerType element_type(this,
+                                  array->getElementType().getAsOpaquePtr());
         if (element_type.GetCompleteType()) {
           child_name = llvm::formatv("[{0}]", idx);
           if (Optional<uint64_t> size =
                   element_type.GetByteSize(get_exe_scope())) {
             child_byte_size = *size;
             child_byte_offset = (int32_t)idx * (int32_t)child_byte_size;
             return element_type;
           }
case clang::Type::Pointer: {
     break;
   }
 
   case clang::Type::LValueReference:
   case clang::Type::RValueReference:
     if (idx_is_valid) {
       const clang::ReferenceType *reference_type =
           llvm::cast<clang::ReferenceType>(parent_qual_type.getTypePtr());
-      CompilerType pointee_clang_type(getASTContext(),
-                                      reference_type->getPointeeType());
+      CompilerType pointee_clang_type(
+          this, reference_type->getPointeeType().getAsOpaquePtr());
       if (transparent_pointers && pointee_clang_type.IsAggregateType()) {
         child_is_deref_of_parent = false;
         bool tmp_child_is_deref_of_parent = false;
         return pointee_clang_type.GetChildCompilerTypeAtIndex(
             exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
             ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
             child_bitfield_bit_size, child_bitfield_bit_offset,
             child_is_base_class, tmp_child_is_deref_of_parent, valobj,
if (idx_is_valid) {
           }
         }
       }
     }
     break;
 
   case clang::Type::Typedef: {
     CompilerType typedefed_clang_type(
-        getASTContext(), llvm::cast<clang::TypedefType>(parent_qual_type)
-                             ->getDecl()
-                             ->getUnderlyingType());
+        this, llvm::cast<clang::TypedefType>(parent_qual_type)
+                  ->getUnderlyingType()
+                  .getAsOpaquePtr());
     return typedefed_clang_type.GetChildCompilerTypeAtIndex(
         exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
         ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
         child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class,
         child_is_deref_of_parent, valobj, language_flags);
   } break;
 
   case clang::Type::Auto: {
     CompilerType elaborated_clang_type(
-        getASTContext(),
-        llvm::cast<clang::AutoType>(parent_qual_type)->getDeducedType());
+        this, llvm::cast<clang::AutoType>(parent_qual_type)
+                  ->getDeducedType()
+                  .getAsOpaquePtr());
     return elaborated_clang_type.GetChildCompilerTypeAtIndex(
         exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
         ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
         child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class,
         child_is_deref_of_parent, valobj, language_flags);
   }
 
   case clang::Type::Elaborated: {
     CompilerType elaborated_clang_type(
-        getASTContext(),
-        llvm::cast<clang::ElaboratedType>(parent_qual_type)->getNamedType());
+        this, llvm::cast<clang::ElaboratedType>(parent_qual_type)
+                  ->getNamedType()
+                  .getAsOpaquePtr());
     return elaborated_clang_type.GetChildCompilerTypeAtIndex(
         exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
         ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
         child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class,
         child_is_deref_of_parent, valobj, language_flags);
   }
 
   case clang::Type::Paren: {
-    CompilerType paren_clang_type(
-        getASTContext(),
-        llvm::cast<clang::ParenType>(parent_qual_type)->desugar());
+    CompilerType paren_clang_type(this,
+                                  llvm::cast<clang::ParenType>(parent_qual_type)
+                                      ->desugar()
+                                      .getAsOpaquePtr());
     return paren_clang_type.GetChildCompilerTypeAtIndex(
         exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
         ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
         child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class,
         child_is_deref_of_parent, valobj, language_flags);
   }
 
   default:
case clang::Type::Record:
         // Try and find a field that matches NAME
         clang::RecordDecl::field_iterator field, field_end;
         llvm::StringRef name_sref(name);
         for (field = record_decl->field_begin(),
             field_end = record_decl->field_end();
              field != field_end; ++field, ++child_idx) {
           llvm::StringRef field_name = field->getName();
           if (field_name.empty()) {
-            CompilerType field_type(getASTContext(), field->getType());
+            CompilerType field_type(this, field->getType().getAsOpaquePtr());
             child_indexes.push_back(child_idx);
             if (field_type.GetIndexOfChildMemberWithName(
                     name, omit_empty_base_classes, child_indexes))
               return child_indexes.size();
             child_indexes.pop_back();
 
           } else if (field_name.equals(name_sref)) {
             // We have to add on the number of base classes to this index!
case clang::Type::ObjCInterface:
 
             if (superclass_interface_decl) {
               // The super class index is always zero for ObjC classes, so we
               // push it onto the child indexes in case we find an ivar in our
               // superclass...
               child_indexes.push_back(0);
 
               CompilerType superclass_clang_type(
-                  getASTContext(), getASTContext()->getObjCInterfaceType(
-                                       superclass_interface_decl));
+                  this, getASTContext()
+                            ->getObjCInterfaceType(superclass_interface_decl)
+                            .getAsOpaquePtr());
               if (superclass_clang_type.GetIndexOfChildMemberWithName(
                       name, omit_empty_base_classes, child_indexes)) {
                 // We did find an ivar in a superclass so just return the
                 // results!
                 return child_indexes.size();
               }
 
               // We didn't find an ivar matching "name" in our superclass, pop
               // the superclass zero index that we pushed on above.
               child_indexes.pop_back();
             }
           }
         }
       }
       break;
 
     case clang::Type::ObjCObjectPointer: {
       CompilerType objc_object_clang_type(
-          getASTContext(),
-          llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr())
-              ->getPointeeType());
+          this, llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr())
+                    ->getPointeeType()
+                    .getAsOpaquePtr());
       return objc_object_clang_type.GetIndexOfChildMemberWithName(
           name, omit_empty_base_classes, child_indexes);
     } break;
 
     case clang::Type::ConstantArray: {
       //                const clang::ConstantArrayType *array =
       //                llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr());
       //                const uint64_t element_count =
if (type && name && name[0]) {
     //            }
     //            break;
     //
     case clang::Type::LValueReference:
     case clang::Type::RValueReference: {
       const clang::ReferenceType *reference_type =
           llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
       clang::QualType pointee_type(reference_type->getPointeeType());
-      CompilerType pointee_clang_type(getASTContext(), pointee_type);
+      CompilerType pointee_clang_type(this, pointee_type.getAsOpaquePtr());
 
       if (pointee_clang_type.IsAggregateType()) {
         return pointee_clang_type.GetIndexOfChildMemberWithName(
             name, omit_empty_base_classes, child_indexes);
       }
     } break;
 
     case clang::Type::Pointer: {
       CompilerType pointee_clang_type(GetPointeeType(type));
 
       if (pointee_clang_type.IsAggregateType()) {
         return pointee_clang_type.GetIndexOfChildMemberWithName(
             name, omit_empty_base_classes, child_indexes);
       }
     } break;
 
     case clang::Type::Typedef:
-      return CompilerType(getASTContext(),
-                          llvm::cast<clang::TypedefType>(qual_type)
+      return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                     ->getDecl()
-                              ->getUnderlyingType())
+                                    ->getUnderlyingType()
+                                    .getAsOpaquePtr())
           .GetIndexOfChildMemberWithName(name, omit_empty_base_classes,
                                          child_indexes);
 
     case clang::Type::Auto:
-      return CompilerType(
-                 getASTContext(),
-                 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+      return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                    ->getDeducedType()
+                                    .getAsOpaquePtr())
           .GetIndexOfChildMemberWithName(name, omit_empty_base_classes,
                                          child_indexes);
 
     case clang::Type::Elaborated:
-      return CompilerType(
-                 getASTContext(),
-                 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+      return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                    ->getNamedType()
+                                    .getAsOpaquePtr())
           .GetIndexOfChildMemberWithName(name, omit_empty_base_classes,
                                          child_indexes);
 
     case clang::Type::Paren:
-      return CompilerType(getASTContext(),
-                          llvm::cast<clang::ParenType>(qual_type)->desugar())
+      return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                    ->desugar()
+                                    .getAsOpaquePtr())
           .GetIndexOfChildMemberWithName(name, omit_empty_base_classes,
                                          child_indexes);
 
     default:
       break;
     }
   }
   return 0;
case clang::Type::Record:
                 llvm::cast<clang::CXXRecordDecl>(
                     base_class->getType()
                         ->getAs<clang::RecordType>()
                         ->getDecl());
             if (omit_empty_base_classes &&
                 !ClangASTContext::RecordHasFields(base_class_decl))
               continue;
 
-            CompilerType base_class_clang_type(getASTContext(),
-                                               base_class->getType());
+            CompilerType base_class_clang_type(
+                this, base_class->getType().getAsOpaquePtr());
             std::string base_class_type_name(
                 base_class_clang_type.GetTypeName().AsCString(""));
             if (base_class_type_name == name)
               return child_idx;
             ++child_idx;
           }
         }
 
case clang::Type::ObjCInterface:
             }
           }
         }
       }
       break;
 
     case clang::Type::ObjCObjectPointer: {
       CompilerType pointee_clang_type(
-          getASTContext(),
-          llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr())
-              ->getPointeeType());
+          this, llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr())
+                    ->getPointeeType()
+                    .getAsOpaquePtr());
       return pointee_clang_type.GetIndexOfChildWithName(
           name, omit_empty_base_classes);
     } break;
 
     case clang::Type::ConstantArray: {
       //                const clang::ConstantArrayType *array =
       //                llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr());
       //                const uint64_t element_count =
if (type && name && name[0]) {
     //                }
     //            }
     //            break;
     //
     case clang::Type::LValueReference:
     case clang::Type::RValueReference: {
       const clang::ReferenceType *reference_type =
           llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
-      CompilerType pointee_type(getASTContext(),
-                                reference_type->getPointeeType());
+      CompilerType pointee_type(
+          this, reference_type->getPointeeType().getAsOpaquePtr());
 
       if (pointee_type.IsAggregateType()) {
         return pointee_type.GetIndexOfChildWithName(name,
                                                     omit_empty_base_classes);
       }
     } break;
 
     case clang::Type::Pointer: {
       const clang::PointerType *pointer_type =
           llvm::cast<clang::PointerType>(qual_type.getTypePtr());
-      CompilerType pointee_type(getASTContext(),
-                                pointer_type->getPointeeType());
+      CompilerType pointee_type(
+          this, pointer_type->getPointeeType().getAsOpaquePtr());
 
       if (pointee_type.IsAggregateType()) {
         return pointee_type.GetIndexOfChildWithName(name,
                                                     omit_empty_base_classes);
       } else {
         //                    if (parent_name)
         //                    {
         //                        child_name.assign(1, '*');
case clang::Type::Pointer: {
         //                        child_byte_size = clang_type_info.first / 8;
         //                        child_byte_offset = 0;
         //                        return pointee_type.getAsOpaquePtr();
         //                    }
       }
     } break;
 
     case clang::Type::Auto:
-      return CompilerType(
-                 getASTContext(),
-                 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+      return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                    ->getDeducedType()
+                                    .getAsOpaquePtr())
           .GetIndexOfChildWithName(name, omit_empty_base_classes);
 
     case clang::Type::Elaborated:
-      return CompilerType(
-                 getASTContext(),
-                 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+      return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                    ->getNamedType()
+                                    .getAsOpaquePtr())
           .GetIndexOfChildWithName(name, omit_empty_base_classes);
 
     case clang::Type::Paren:
-      return CompilerType(getASTContext(),
-                          llvm::cast<clang::ParenType>(qual_type)->desugar())
+      return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                    ->desugar()
+                                    .getAsOpaquePtr())
           .GetIndexOfChildWithName(name, omit_empty_base_classes);
 
     case clang::Type::Typedef:
-      return CompilerType(getASTContext(),
-                          llvm::cast<clang::TypedefType>(qual_type)
+      return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                     ->getDecl()
-                              ->getUnderlyingType())
+                                    ->getUnderlyingType()
+                                    .getAsOpaquePtr())
           .GetIndexOfChildWithName(name, omit_empty_base_classes);
 
     default:
       break;
     }
   }
   return UINT32_MAX;
 }
if (GetCompleteType(type)) {
                 cxx_record_decl);
         if (template_decl)
           return template_decl->getTemplateArgs().size();
       }
     }
     break;
 
   case clang::Type::Typedef:
-    return (CompilerType(getASTContext(),
-                         llvm::cast<clang::TypedefType>(qual_type)
+    return CompilerType(this, llvm::cast<clang::TypedefType>(qual_type)
                                   ->getDecl()
-                             ->getUnderlyingType()))
+                                  ->getUnderlyingType()
+                                  .getAsOpaquePtr())
         .GetNumTemplateArguments();
 
   case clang::Type::Auto:
-    return (CompilerType(
-                getASTContext(),
-                llvm::cast<clang::AutoType>(qual_type)->getDeducedType()))
+    return CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                                  ->getDeducedType()
+                                  .getAsOpaquePtr())
         .GetNumTemplateArguments();
 
   case clang::Type::Elaborated:
-    return (CompilerType(
-                getASTContext(),
-                llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType()))
+    return CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                                  ->getNamedType()
+                                  .getAsOpaquePtr())
         .GetNumTemplateArguments();
 
   case clang::Type::Paren:
-    return (CompilerType(getASTContext(),
-                         llvm::cast<clang::ParenType>(qual_type)->desugar()))
+    return CompilerType(this, llvm::cast<clang::ParenType>(qual_type)
+                                  ->desugar()
+                                  .getAsOpaquePtr())
         .GetNumTemplateArguments();
 
   default:
     break;
   }
 
   return 0;
 }
ClangASTContext::GetTypeTemplateArgument(lldb::opaque_compiler_type_t type,
   if (!template_decl || idx >= template_decl->getTemplateArgs().size())
     return CompilerType();
 
   const clang::TemplateArgument &template_arg =
       template_decl->getTemplateArgs()[idx];
   if (template_arg.getKind() != clang::TemplateArgument::Type)
     return CompilerType();
 
-  return CompilerType(getASTContext(), template_arg.getAsType());
+  return CompilerType(this, template_arg.getAsType().getAsOpaquePtr());
 }
 
 Optional<CompilerType::IntegralTemplateArgument>
 ClangASTContext::GetIntegralTemplateArgument(lldb::opaque_compiler_type_t type,
                                              size_t idx) {
   const clang::ClassTemplateSpecializationDecl *template_decl =
       GetAsTemplateSpecialization(type);
   if (! template_decl || idx >= template_decl->getTemplateArgs().size())
     return llvm::None;
 
   const clang::TemplateArgument &template_arg =
       template_decl->getTemplateArgs()[idx];
   if (template_arg.getKind() != clang::TemplateArgument::Integral)
     return llvm::None;
 
-  return {{template_arg.getAsIntegral(),
-           CompilerType(getASTContext(), template_arg.getIntegralType())}};
+  return {
+      {template_arg.getAsIntegral(),
+       CompilerType(this, template_arg.getIntegralType().getAsOpaquePtr())}};
 }
 
 CompilerType ClangASTContext::GetTypeForFormatters(void *type) {
   if (type)
     return ClangUtil::RemoveFastQualifiers(CompilerType(this, type));
   return CompilerType();
 }
 
bool ClangASTContext::AddObjCClassProperty(
 
   if (class_interface_decl) {
     CompilerType property_clang_type_to_access;
 
     if (property_clang_type.IsValid())
       property_clang_type_to_access = property_clang_type;
     else if (ivar_decl)
       property_clang_type_to_access =
-          CompilerType(clang_ast, ivar_decl->getType());
+          CompilerType(ast, ivar_decl->getType().getAsOpaquePtr());
 
     if (class_interface_decl && property_clang_type_to_access.IsValid()) {
       clang::TypeSourceInfo *prop_type_source;
       if (ivar_decl)
         prop_type_source =
             clang_ast->getTrivialTypeSourceInfo(ivar_decl->getType());
       else
         prop_type_source = clang_ast->getTrivialTypeSourceInfo(
ClangASTContext::GetEnumerationIntegerType(lldb::opaque_compiler_type_t type) {
   clang::QualType enum_qual_type(GetCanonicalQualType(type));
   const clang::Type *clang_type = enum_qual_type.getTypePtr();
   if (clang_type) {
     const clang::EnumType *enutype =
         llvm::dyn_cast<clang::EnumType>(clang_type);
     if (enutype) {
       clang::EnumDecl *enum_decl = enutype->getDecl();
       if (enum_decl)
-        return CompilerType(getASTContext(), enum_decl->getIntegerType());
+        return CompilerType(this, enum_decl->getIntegerType().getAsOpaquePtr());
     }
   }
   return CompilerType();
 }
 
 CompilerType
 ClangASTContext::CreateMemberPointerType(const CompilerType &type,
                                          const CompilerType &pointee_type) {
   if (type && pointee_type.IsValid() &&
       type.GetTypeSystem() == pointee_type.GetTypeSystem()) {
     ClangASTContext *ast =
         llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
     if (!ast)
       return CompilerType();
-    return CompilerType(ast->getASTContext(),
-                        ast->getASTContext()->getMemberPointerType(
+    return CompilerType(ast, ast->getASTContext()
+                                 ->getMemberPointerType(
                                      ClangUtil::GetQualType(pointee_type),
-                            ClangUtil::GetQualType(type).getTypePtr()));
+                                     ClangUtil::GetQualType(type).getTypePtr())
+                                 .getAsOpaquePtr());
   }
   return CompilerType();
 }
 
 // Dumping types
 #define DEPTH_INCREMENT 2
 
 #ifndef NDEBUG
if (GetCompleteType(type)) {
           // Indent and print the base class type name
           s->Format("\n{0}{1}", llvm::fmt_repeat(" ", depth + DEPTH_INCREMENT),
                     base_class_type_name);
 
           clang::TypeInfo base_class_type_info =
               getASTContext()->getTypeInfo(base_class_qual_type);
 
           // Dump the value of the member
-          CompilerType base_clang_type(getASTContext(), base_class_qual_type);
+          CompilerType base_clang_type(this,
+                                       base_class_qual_type.getAsOpaquePtr());
           base_clang_type.DumpValue(
               exe_ctx,
               s, // Stream to dump to
               base_clang_type
                   .GetFormat(), // The format with which to display the member
               data, // Data buffer containing all bytes for this type
               data_byte_offset + field_byte_offset, // Offset into "data" where
                                                     // to grab value from
if (GetCompleteType(type)) {
                       field_bitfield_bit_size);
           else
             s->Printf("(%s) ", field_type_name.c_str());
         }
         // Print the member name and equal sign
         s->Printf("%s = ", field->getNameAsString().c_str());
 
         // Dump the value of the member
-        CompilerType field_clang_type(getASTContext(), field_type);
+        CompilerType field_clang_type(this, field_type.getAsOpaquePtr());
         field_clang_type.DumpValue(
             exe_ctx,
             s, // Stream to dump to
             field_clang_type
                 .GetFormat(), // The format with which to display the member
             data,             // Data buffer containing all bytes for this type
             data_byte_offset + field_byte_offset, // Offset into "data" where to
                                                   // grab value from
case clang::Type::ConstantArray: {
     if (is_array_of_characters) {
       s->PutChar('"');
       DumpDataExtractor(data, s, data_byte_offset, lldb::eFormatChar,
                         element_byte_size, element_count, UINT32_MAX,
                         LLDB_INVALID_ADDRESS, 0, 0);
       s->PutChar('"');
       return;
     } else {
-      CompilerType element_clang_type(getASTContext(), element_qual_type);
+      CompilerType element_clang_type(this, element_qual_type.getAsOpaquePtr());
       lldb::Format element_format = element_clang_type.GetFormat();
 
       for (element_idx = 0; element_idx < element_count; ++element_idx) {
         // Print the starting squiggly bracket (if this is the first member) or
         // comman (for member 2 and beyong) for the struct/union/class member.
         if (element_idx == 0)
           s->PutChar('{');
         else
case clang::Type::ConstantArray: {
     return;
 
   case clang::Type::Typedef: {
     clang::QualType typedef_qual_type =
         llvm::cast<clang::TypedefType>(qual_type)
             ->getDecl()
             ->getUnderlyingType();
 
-    CompilerType typedef_clang_type(getASTContext(), typedef_qual_type);
+    CompilerType typedef_clang_type(this, typedef_qual_type.getAsOpaquePtr());
     lldb::Format typedef_format = typedef_clang_type.GetFormat();
     clang::TypeInfo typedef_type_info =
         getASTContext()->getTypeInfo(typedef_qual_type);
     uint64_t typedef_byte_size = typedef_type_info.Width / 8;
 
     return typedef_clang_type.DumpValue(
         exe_ctx,
         s,                   // Stream to dump to
         typedef_format,      // The format with which to display the element
         data,                // Data buffer containing all bytes for this type
         data_byte_offset,    // Offset into "data" where to grab value from
         typedef_byte_size,   // Size of this type in bytes
         bitfield_bit_size,   // Bitfield bit size
         bitfield_bit_offset, // Bitfield bit offset
         show_types,   // Boolean indicating if we should show the variable types
         show_summary, // Boolean indicating if we should show a summary for the
                       // current type
         verbose,      // Verbose output?
         depth);       // Scope depth for any types that have children
   } break;
 
   case clang::Type::Auto: {
     clang::QualType elaborated_qual_type =
         llvm::cast<clang::AutoType>(qual_type)->getDeducedType();
-    CompilerType elaborated_clang_type(getASTContext(), elaborated_qual_type);
+    CompilerType elaborated_clang_type(this,
+                                       elaborated_qual_type.getAsOpaquePtr());
     lldb::Format elaborated_format = elaborated_clang_type.GetFormat();
     clang::TypeInfo elaborated_type_info =
         getASTContext()->getTypeInfo(elaborated_qual_type);
     uint64_t elaborated_byte_size = elaborated_type_info.Width / 8;
 
     return elaborated_clang_type.DumpValue(
         exe_ctx,
         s,                    // Stream to dump to
         elaborated_format,    // The format with which to display the element
         data,                 // Data buffer containing all bytes for this type
         data_byte_offset,     // Offset into "data" where to grab value from
         elaborated_byte_size, // Size of this type in bytes
         bitfield_bit_size,    // Bitfield bit size
         bitfield_bit_offset,  // Bitfield bit offset
         show_types,   // Boolean indicating if we should show the variable types
         show_summary, // Boolean indicating if we should show a summary for the
                       // current type
         verbose,      // Verbose output?
         depth);       // Scope depth for any types that have children
   } break;
 
   case clang::Type::Elaborated: {
     clang::QualType elaborated_qual_type =
         llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType();
-    CompilerType elaborated_clang_type(getASTContext(), elaborated_qual_type);
+    CompilerType elaborated_clang_type(this,
+                                       elaborated_qual_type.getAsOpaquePtr());
     lldb::Format elaborated_format = elaborated_clang_type.GetFormat();
     clang::TypeInfo elaborated_type_info =
         getASTContext()->getTypeInfo(elaborated_qual_type);
     uint64_t elaborated_byte_size = elaborated_type_info.Width / 8;
 
     return elaborated_clang_type.DumpValue(
         exe_ctx,
         s,                    // Stream to dump to
         elaborated_format,    // The format with which to display the element
         data,                 // Data buffer containing all bytes for this type
         data_byte_offset,     // Offset into "data" where to grab value from
         elaborated_byte_size, // Size of this type in bytes
         bitfield_bit_size,    // Bitfield bit size
         bitfield_bit_offset,  // Bitfield bit offset
         show_types,   // Boolean indicating if we should show the variable types
         show_summary, // Boolean indicating if we should show a summary for the
                       // current type
         verbose,      // Verbose output?
         depth);       // Scope depth for any types that have children
   } break;
 
   case clang::Type::Paren: {
     clang::QualType desugar_qual_type =
         llvm::cast<clang::ParenType>(qual_type)->desugar();
-    CompilerType desugar_clang_type(getASTContext(), desugar_qual_type);
+    CompilerType desugar_clang_type(this, desugar_qual_type.getAsOpaquePtr());
 
     lldb::Format desugar_format = desugar_clang_type.GetFormat();
     clang::TypeInfo desugar_type_info =
         getASTContext()->getTypeInfo(desugar_qual_type);
     uint64_t desugar_byte_size = desugar_type_info.Width / 8;
 
     return desugar_clang_type.DumpValue(
         exe_ctx,
if (IsAggregateType(type)) {
 
     const clang::Type::TypeClass type_class = qual_type->getTypeClass();
     switch (type_class) {
     case clang::Type::Typedef: {
       clang::QualType typedef_qual_type =
           llvm::cast<clang::TypedefType>(qual_type)
               ->getDecl()
               ->getUnderlyingType();
-      CompilerType typedef_clang_type(getASTContext(), typedef_qual_type);
+      CompilerType typedef_clang_type(this, typedef_qual_type.getAsOpaquePtr());
       if (format == eFormatDefault)
         format = typedef_clang_type.GetFormat();
       clang::TypeInfo typedef_type_info =
           getASTContext()->getTypeInfo(typedef_qual_type);
       uint64_t typedef_byte_size = typedef_type_info.Width / 8;
 
       return typedef_clang_type.DumpTypeValue(
           s,
case clang::Type::Typedef: {
         if (!clang_typedef_name.empty()) {
           s->PutCString("typedef ");
           s->PutCString(clang_typedef_name);
         }
       }
     } break;
 
     case clang::Type::Auto:
-      CompilerType(getASTContext(),
-                   llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
+      CompilerType(this, llvm::cast<clang::AutoType>(qual_type)
+                             ->getDeducedType()
+                             .getAsOpaquePtr())
           .DumpTypeDescription(s);
       return;
 
     case clang::Type::Elaborated:
-      CompilerType(getASTContext(),
-                   llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
+      CompilerType(this, llvm::cast<clang::ElaboratedType>(qual_type)
+                             ->getNamedType()
+                             .getAsOpaquePtr())
           .DumpTypeDescription(s);
       return;
 
     case clang::Type::Paren:
-      CompilerType(getASTContext(),
-                   llvm::cast<clang::ParenType>(qual_type)->desugar())
+      CompilerType(
+          this,
+          llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())
           .DumpTypeDescription(s);
       return;
 
     case clang::Type::Record: {
       GetCompleteType(type);
 
       const clang::RecordType *record_type =
           llvm::cast<clang::RecordType>(qual_type.getTypePtr());

lldb/trunk/source/Symbol/CompilerType.cpp

 //===-- CompilerType.cpp ----------------------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "lldb/Symbol/CompilerType.h"
 
 #include "lldb/Core/Debugger.h"
 #include "lldb/Core/StreamFile.h"
-#include "lldb/Symbol/ClangASTContext.h"
-#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
 #include "lldb/Symbol/Type.h"
 #include "lldb/Target/ExecutionContext.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Utility/ConstString.h"
 #include "lldb/Utility/DataBufferHeap.h"
 #include "lldb/Utility/DataExtractor.h"
 #include "lldb/Utility/Scalar.h"
 #include "lldb/Utility/Stream.h"
 #include "lldb/Utility/StreamString.h"
 
 #include <iterator>
 #include <mutex>
 
 using namespace lldb;
 using namespace lldb_private;
 
 CompilerType::CompilerType(TypeSystem *type_system,
                            lldb::opaque_compiler_type_t type)
     : m_type(type), m_type_system(type_system) {}
 
-CompilerType::CompilerType(clang::ASTContext *ast, clang::QualType qual_type)
-    : m_type(qual_type.getAsOpaquePtr()),
-      m_type_system(ClangASTContext::GetASTContext(ast)) {
-  if (m_type)
-    assert(m_type_system != nullptr);
-}
-
 CompilerType::~CompilerType() {}
 
 // Tests
 
 bool CompilerType::IsAggregateType() const {
   if (IsValid())
     return m_type_system->IsAggregateType(m_type);
   return false;

 }
 
 void CompilerType::SetCompilerType(TypeSystem *type_system,
                                    lldb::opaque_compiler_type_t type) {
   m_type_system = type_system;
   m_type = type;
 }
 
-void CompilerType::SetCompilerType(clang::ASTContext *ast,
-                                   clang::QualType qual_type) {
-  m_type_system = ClangASTContext::GetASTContext(ast);
-  m_type = qual_type.getAsOpaquePtr();
-}
-
 unsigned CompilerType::GetTypeQualifiers() const {
   if (IsValid())
     return m_type_system->GetTypeQualifiers(m_type);
   return 0;
 }
 
 // Creating related types
 

lldb/trunk/unittests/Symbol/TestClangASTContext.cpp

TEST_F(TestClangASTContext, TemplateArguments) {
   m_ast->StartTagDeclarationDefinition(type);
   m_ast->CompleteTagDeclarationDefinition(type);
 
   // typedef foo<int, 47> foo_def;
   CompilerType typedef_type = m_ast->CreateTypedefType(
       type, "foo_def",
       CompilerDeclContext(m_ast.get(), m_ast->GetTranslationUnitDecl()));
 
-  CompilerType auto_type(m_ast->getASTContext(),
-                         m_ast->getASTContext()->getAutoType(
-                             ClangUtil::GetCanonicalQualType(typedef_type),
-                             clang::AutoTypeKeyword::Auto, false));
+  CompilerType auto_type(
+      m_ast.get(),
+      m_ast->getASTContext()
+          ->getAutoType(ClangUtil::GetCanonicalQualType(typedef_type),
+                        clang::AutoTypeKeyword::Auto, false)
+          .getAsOpaquePtr());
 
-  CompilerType int_type(m_ast->getASTContext(), m_ast->getASTContext()->IntTy);
+  CompilerType int_type(m_ast.get(), m_ast->getASTContext()->IntTy.getAsOpaquePtr());
   for (CompilerType t : {type, typedef_type, auto_type}) {
     SCOPED_TRACE(t.GetTypeName().AsCString());
 
     EXPECT_EQ(m_ast->GetTemplateArgumentKind(t.GetOpaqueQualType(), 0),
               eTemplateArgumentKindType);
     EXPECT_EQ(m_ast->GetTypeTemplateArgument(t.GetOpaqueQualType(), 0),
               int_type);
     EXPECT_EQ(llvm::None,